Kit with Pillow Sleeves of a Single Length and Different Widths for User-Selectable Compression Pressure, Fill Density, Firmness, and Height

This application claims priority to and the benefit of the provisional patent application titled “A Stuffed Pillow and Rectangular Pillow Sleeves of Lengths L-1 and Widths W-1, W-2, W-3, and W-4, for a User Selectable Compression Pressure, Fill Density, and Height, to Achieve Individual User Comfort”, application No. 63/638,947, filed in the United States Patent and Trademark Office on Apr. 26, 2024. The specification of the above-referenced patent application is incorporated herein by reference in its entirety.

Many different types of pillows are made and marketed, including pillows with inserts that adjust the height of the pillow, or pillows that use different materials to provide a user with a different firmness. Pillows are manufactured in several different ways. For example, pillows are formed of a top sheet of material and a bottom sheet of material that are joined around their outer periphery. Some pillows include a connection means between the top and bottom sheets of material, comprising, for example, stitching, buttons, zippers, etc. Pillow protectors may be provided to protect the outer fabric of the pillows inserted thereinto. Some pillow protectors include a premium, smooth zipper to prevent the user from feeling the zipper when the pillow protector is closed and in use.

Pillows are typically filled with materials of different types, for example, natural materials such as cotton, wool, duck or goose down and feathers, buckwheat, etc., and synthetic materials such as memory foam, siliconized polyester fibers, microfibers, etc. Cotton filling provides a firmer, flatter pillow that generally holds its shape well. Cotton is also cooler and breathes better than other materials. Wool provides a fuller feeling pillow and is durable, maintains warmth, and absorbs moisture away from the surface of the pillow. Down pillows are the softest and provide an airy feeling to the user.

Pillows are typically used for comfortably positioning and resting a user's head or another body part during sleep or other resting activities. For a pillow to be comfortable throughout the sleeping or resting time, the pillow must support the user's neck and head to facilitate a generally straight alignment of the user's spine. Conventional pillows are typically of a rectangular shape and are manufactured in one of only a few sizes, for example, a standard size, a queen size, and a king size. In an example, a conventional pillow of a standard size has a width of about 20 inches and a length of about 26 inches; a conventional pillow of a queen size has a width of about 20 inches and a length of about 30 inches; and a conventional pillow of a king size has a width of about 20 inches and a length of about 36 inches. A conventional pillow is typically manufactured with a uniform fill material. If the user's head is resting on a conventional pillow that is too thin or too low, the neck of the user lying sideways may bend in a downward direction. To maintain the side-lying user's neck at a straight alignment, a thicker or stiffer pillow must be used to provide higher support when the user's head is resting on the pillow. However, when the pillow is too thick or when the user stacks two pillows one on top of the other, the neck of the user bends in an upward direction, which may pinch various nerves in the neck and cause pain in the upper body of the user. The user may attempt to compensate for the thickness of the pillow, for example, by folding the pillow, or placing the user's arm under the pillow, or stacking pillows to obtain a proper height. An improper height of the pillow causes discomfort and lack of rest or a good night's sleep. Conventional pillows do not allow for height adjustment tailored to a specific user's preference, which may change depending on the user's sleeping position.

Furthermore, when the user's head rests on a conventional pillow during sleeping or resting time, the fill material of the conventional pillow compresses substantially over time, or may migrate out from under the user's head, causing the conventional pillow to change shape, gradually reduce its height, and flatten out, when the user is resting or at sleep. Consequently, the user has to re-fluff and re-adjust the pillow several times during rest or sleep. The user may also attempt to compensate for the compression of the pillow by stacking multiple pillows on top of the other which leads to further substantial compression of the pillow and discomfort or inconvenience to the user who requires support during sleep or rest.

One conventional method for providing a comfortable shape and feel of a pillow to the user is to introduce multiple inserts into a pillow case to alter the shape and the feel of the pillow. The inserts have specific sizes that allow the user to vary the weight or the height of the pillow to provide the user with a substantial amount of variability. However, this conventional method is not cost-effective and having to combine two or more inserts, each having a different fill density and height, according to the user's preferences would be difficult and time consuming. As used herein, “fill density” refers to the weight of the fill material in the pillow divided by the volume of the space within the pillow. Higher the fill density in the pillow, higher is the firmness of the pillow. Lower the fill density in the pillow, softer is the feel when the user's head rests on the pillow.

Prolonged use of conventional pillows and constant readjustment can change their shape and support, making the pillows uncomfortable to use. This discomfort can render the pillows unusable, leading users to buy new pillows frequently, sometimes every 2-3 months. Therefore, there is an unmet need for pillow sleeves with different widths that compress and hold the filling material more tightly. Such pillow sleeves would maintain a user-selected firmness and height of the pillow, preventing the pillow from flattening out during use and reducing the need for frequent replacement of the pillow.

Hence, there is a long-felt need for a method and a pillow sleeve kit comprising a predetermined number of pillow sleeves of a single length selectable based on size of a pillow to be inserted thereinto, where the pillow sleeves are of different widths, for providing a user-selectable compression pressure, fill density, firmness, and height based on individual user comfort, while addressing the above-recited problems of the related art.

The method and the apparatus disclosed herein address the above-recited needs for a method and for a pillow sleeve kitcomprising a predetermined number of pillow sleeves,,, andof a single length selectable based on a size of a pillowto be inserted thereinto as illustrated in, where the pillow sleeves,,, andare of different widths for providing a user-selectable compression pressure, fill density, firmness, and height to the pillowbased on individual user comfort. The pillowis stuffed with fill material of one or more types, for example, natural materials such as cotton, wool, latex, duck or goose down and feathers, buckwheat, kapok fibers, etc., and synthetic materials such as memory foam, siliconized polyester fibers, polyester fiberfill, microfibers, microbeads, etc. The pillow sleeves,,, andare made from different materials, for example, cotton, polyester, silk, bamboo-derived fabrics, linen, microfibers, etc., or any combination thereof.

illustrates an embodiment of a pillow sleeve kitcomprising a predetermined number of pillow sleeves, for example, four pillow sleeves,,, and, of a single length and of different widths. In an embodiment, each of the pillow sleeves,,, andis of a rectangular shape. The pillow sleeves,,, andare of a single length selectable based on a size of a pillowto be inserted thereinto as illustrated in. The pillow sleeves,,, andare of different widths configured to provide a user-selectable compression pressure, fill density, firmness, and height to the pillowbased on individual user comfort. As used herein, “compression pressure” refers to a force exerted on the surface of a pillowwhen the pillowis compressed, which impacts firmness or softness of the pillowand support provided by the pillow. Fill density is a measure of the compactness of the fill material within the pillow. When a user rests his or her head on a pillow, the user's head and neck apply pressure to the pillow, which compresses the fill material of the pillow. The compression pressure is the resistance the pillowprovides against pressure applied by the user's head and neck during rest or sleep thereon, influencing overall feel and ability of the pillowto maintain a proper alignment of the user's spine during sleep.

The size of the pillowis one of a standard size, a queen size, and a king size. Accordingly, the length of each of the pillow sleeves,,, andis one of a standard size length, a queen size length, and a king size length. In an example, the standard size length is about 25 inches; the queen size length is about 29 inches; and the king size length is about 35 inches. In an embodiment, the width of each of the pillow sleeves,,, andis varied to provide the user-selectable compression pressure, fill density, firmness, and height. The compression pressure, the fill density, the firmness, and the height of the pilloware varied by inserting the pillowinto each of the pillow sleeves,,, andof a single length and different widths. In an embodiment as illustrated in, a zipperis provided on one of the sides of each of the pillow sleeves,,, and. In an embodiment, each of the pillow sleeves,,, andare configured as tight-fitting pillow cover or a compression pillow encasement with a zipper closure disposed at one side. A different compression pressure, a different fill density, a different firmness, and a different height are provided by assembling the pillowin each of the pillow sleeves,,, andof the single length and the different widths as disclosed in the descriptions ofand. As used herein, “assembling the pillow” refers to inserting the pillowinto a pillow sleeve///and closing and fastening the pillowtherewithin using the zipper.

Most users typically use rectangular pillowsof the same size, for example, either a standard size or a queen size or a king size, on their beds. In an embodiment, the pillow sleeve kitprovides four rectangular pillow sleeves,,, andwith the same length, for example, either a standard size length, a queen size length, or a king size length and with different widths as illustrated in,, and. Although the detailed description refers to a pillow sleeve kitwith four pillow sleeves,,, and, the pillow sleeve kitdisclosed herein is not limited to including four pillow sleeves,,, and, but extends to include any number of pillow sleeves of the same single length and multiple different widths, based on user preferences.

The pillow sleeves,,, andin the pillow sleeve kitare configured with a single length to fit pillowsthat the user already has. In an example, if the user has standard sized-pillows, each of the same length of about 26 inches, the user can order the pillow sleeve kitcomprising a set of four pillow sleeves,,, andhaving the same standard size length of about 25 inches, but with four different widths. In another example, if the user has queen sized-pillows, each of the same length of aboutinches, the user can order the pillow sleeve kitcomprising a set of four pillow sleeves,,, andhaving the same queen size length of about 29 inches, but with four different widths. In another example, if the user has king sized-pillows, each of the same length of about 36 inches, the user can order the pillow sleeve kitcomprising a set of four pillow sleeves,,, andhaving the same king size length of about 35 inches, but with four different widths. In an embodiment, the single length of each of the pillow sleeves,,, andis configured to be less than the length of the pillow, to allow each of the pillow sleeves,,, andto fully and tightly accommodate the pillowtherewithin, with a slight compression on a longitudinal axis. For example, for a standard size pillow of length 26 inches, the single length of each of the pillow sleeves,,, andis about 25 inches; for a queen size pillow of length 30 inches, the single length of each of the pillow sleeves,,, andis about 29 inches; and for a king size pillow of length 36 inches, the single length of each of the pillow sleeves,,, andis about 35 inches, which provides compression on the longitudinal axis of the pillow. The different widths of the pillow sleeves,,, andprovide the fill material of the pillowinserted thereinto with different amounts of compression on the lateral axis and render different heights to the inserted pillow.

In an example, for a pillowof a standard size (S) having a width of aboutinches and a length of aboutinches, the pillow sleeves,,, andin the pillow sleeve kitare provided with a single length of about 25 inches and four different widths of about 16 inches, 17 inches, 18 inches, and 19 inches, which provide four different compression pressures SP, SP, SP, and SP, respectively, and render four different heights SH, SH, SH, and SHfor the standard size pillow.

In another example, for a pillowof a queen size (Q) having a width of about 20 inches and a length of about 30 inches, the pillow sleeves,,, andin the pillow sleeve kitare provided with a single length of about 29 inches and four different widths of about 16 inches, 17 inches, 18 inches, and 19 inches, which provide four different compression pressures QP, QP, QP, and QP, and render four different heights QH, QH, QH, and QHfor the queen size pillow.

In another example, for a pillowof a king size (K) having a width of about 20 inches and a length of about 36 inches, the pillow sleeves,,, andin the pillow sleeve kitare provided with a single length of about 35 inches and four different widths of about 16 inches, 17 inches, 18 inches, and 19 inches, which provide four different compression pressures KP, KP, KP, and KP, and render four different heights KH, KH, KH, and KHfor the king size pillow.

Therefore, in the above examples, the pillow sleeves,,, andare provided in the pillow sleeve kitas a pack of four pillow sleeves,,, andwith different widths. That is, a standard four pack-pillow sleeve kit comprises four standard size pillow sleeves in four widths; a queen four pack-pillow sleeve kit comprises four queen size pillow sleeves in four widths; and a king four pack-pillow sleeve kit comprises four king size pillow sleeves in four widths. The pillow sleeve kitallows the user to customize his or her standard size or queen size or king size pillow based on the user's preference by merely changing the pillow sleeve. Therefore, the user may select and adjust the compression and height of the pillowby selecting pillow sleeves of a slightly reduced single length and different widths.

When the user inserts the pillowinto a pillow sleeve with a narrow width, for example, the pillow sleeveor, as illustrated in, the pillow sleeve compresses the fill material of the pillowmore tightly against the sides of the pillow. The compression of the fill material increases the density of the fill material in those areas, making the pillowfeel firmer. Moreover, the pillow sleeve with a narrow width also restricts the natural expansion and migration of the fill material contained in the pillow. When the fill material is compressed within a narrower space rendered by a narrower pillow sleeve, the fill material will be compressed within a smaller pillow volume, resulting in a firmer feel. Furthermore, in an embodiment, the pillow sleeve with a narrower width maintains a substantially more uniform fill material density throughout the pillow. With less space for the fill material to expand into or migrate from under the user's head and neck, the fill material remains uniformly distributed in the narrower confined space of the narrower pillow sleeve, providing a higher fill density and firmer support and density across the entire surface of the pillow. The pillow sleeves,,, andof different widths in the pillow sleeve kit, therefore, impact the fill density of the pillowby either increasing compression and density or by restricting expansion and migration, depending on the type of fill material and how the fill material responds to being confined in a variable space provided by the pillow sleeves,,, andof different widths. Each of the pillow sleeves,,, andcompresses the fill material in the pillow, allowing the firmness of the pillowto be adjustable by using the pillow sleeves,,, andof different widths to obtain a customized fit. The firmness of the pillowwithin is adjusted from using the pillow sleevewhich provides an assembled pillowwith the least relative firmness as illustrated in, to using the pillow sleevewhich provides an assembled pillowwith the most relative firmness as illustrated in. The pillow sleeves,,, andof different widths in the pillow sleeve kit, therefore, allows the user to select and adjust compression pressure, fill density, firmness, and height of the pillowbased on individual user comfort. The pillow sleeve kitwith a predetermined number of pillow sleeves,,, andof the same length and of different widths allows the user to instantly change the amount of filling compression based on user preferences. If the user is unsatisfied with the compression pressure, fill density, firmness, and height provided to the pillowby the width of one pillow sleeve, for example, a width of about 19 inches of the pillow sleeve, the user may select another pillow sleeve, for example,,, orwith a different width of aboutinches, orinches, orinches, respectively, to obtain the desired firmness, compression pressure, fill density, and pillow height. The pillow sleeve kitallows the user to adjust the firmness of their pillowby selecting any of the pillow sleeves,,, andwith the decreasing widths. If one pillow sleeve is too flat or too high, the user may select another pillow sleeve of a different width to obtain more or less compression and pillow height until the user finds the right pillow sleeve to suit for their desired firmness.

illustrates a top perspective view of a rectangular pillow sleeve///, showing insertion of a pillowinto an interior cavityof the rectangular pillow sleeve///. In an embodiment, the zipperis disposed on one side of the pillow sleeve///. The zipperin an open condition is configured to allow insertion of the pillowinto the interior cavityof the rectangular pillow sleeve///of the same single length and the different widths to obtain an assembled pillow///in a closed condition with a user-selected compression pressure, fill density, firmness, and height as illustrated in. As the space within the pillowis decreased by the use of narrower width pillow sleeves, for the same amount of the fill material within the pillow, the fill density of the pillowwill increase, which in turn, will increase the firmness of the assembled pillow. The zipperextends till the corner of one side of the pillow sleeve///to allow convenient insertion of a pillowwith an increased width into the interior cavityof the rectangular pillow sleeve///. A user opens the zipperto expose the interior cavityof the rectangular pillow sleeve///and inserts the pillowinto the interior cavityof the rectangular pillow sleeve///in the direction of the arrow illustrated in. That is, the user inserts the pillowthrough one side of any of the pillow sleeves,,, andand zips up the pillow sleeve,,, orto encase the pillowwithin any of the pillow sleeves,,, and.

illustrate top perspective views of four assembled pillows,,, andcomprising a pillowof a single size assembled in each of four rectangular pillow sleeves,,, andhaving the same length and four different widths, providing user-selectable compression pressures, fill densities, firmness, and heights. A user customizes the same pillowof the single size, for example, either a standard size, or a queen size, or a king size, in four different ways by opening the zippersof the four rectangular pillow sleeves,,, andhaving four different widths selectable from XW-, XW-, XW-, and XW-as illustrated in, respectively; inserting the same pillowinto each of the interior cavitiesof the rectangular pillow sleeves,,, andillustrated in; and closing the zippersto obtain the assembled pillows,,, and. XW-, XW-, XW-, and XW-denote four different widths of type X, where X is one of a standard size, a queen size, and a king size. Although the lengths of the four rectangular pillow sleeves,,, andare the same, the four different widths XW-, XW-, XW-, and XW-of the rectangular pillow sleeves,,, and, respectively, provide different compression pressures, different fill densities, and different heights XH, XH, XH, and XH, respectively. XH, XH, XH, and XHare the heights of the assembled pillows,,, andof size X, respectively. In an embodiment, the pillow sleeves,,, andare made of an elastic material to provide the user-selected compression pressure to the assembled pillows,,, and, respectively. In another embodiment, the pillow sleeves,,, andare made of an inelastic material to provide the user-selected compression pressure to the assembled pillows,,, and.

The length (XL-) of each of the pillow sleeves,,, andis one of a standard size length (SL-), a queen size length (QL-), and a king size length (KL-). Each of the pillow sleeves,,, andcomprises a top member///and a bottom member///attached to each other to define an interior cavityfor receiving the pillowas illustrated in. In an embodiment, three sides,, andof each of the top memberand the bottom memberof the pillow sleeveare attached to each other by seams, and a fourth sideof each of the top memberand the bottom memberof the pillow sleeveis attached by the zipperas illustrated in. Similarly, three sides//,//, and//of each of the top member//and the bottom member//of the pillow sleeve//are attached to each other by seams, and a fourth side//of each of the top member//and the bottom member//of the pillow sleeve//is attached by the zipperas illustrated in. The zippercomprises a pull taband a chain. The chainof the zipperextends along the fourth side///of each of the top member///and the bottom member///of the pillow sleeveand meets the pull tabof the zipper.

The compression pressure of the assembled pillow///is inversely proportional to the volume of the assembled pillow///. The fill density is also inversely proportional to the volume of the assembled pillow///. When the width of the pillowis limited, the internal volume decreases, making the fill density of the pillowincrease. This higher fill density pushes outward and causes the pillowto expand in the direction of least resistance, which is the upward direction. The height of the pillowwill keep increasing until the outward pressure from the fill density is balanced by the resistance in height. Therefore, the narrower the pillow sleeve, the higher the fill density and the greater the height. When the fill material of the pillowfilling is compressed, by using a smaller pillow sleeve for the same amount of fill material, the volume decreases, causing the fill density to increase proportionally. The length, width, fill density, height, and mass of the assembled pillow///are related by a predefined formula as follows:

wherein,

For purposes of illustration, the pillow sleeve kitin the following examples comprises four pillow sleeves of a single length and of four different widths XW-, XW-, XW-, and XW-, that provide four different compression pressures XP, XP, XP, and XP, four different fill densities XD, XD, XD, and XD, and four different heights XH, XH, XH, and XH. However, the scope of the pillow sleeve kitdisclosed herein is not limited to comprising four pillow sleeves,,, andof a single length and of four different widths XW-, XW-, XW-, and XW-, but extends to include any number of pillow sleeves of a single length and of any number of different widths.

In an example, the length, width, the fill density, the height, and mass of the assembled pillow///comprising a pillowof the standard size (S) inserted into each of the pillow sleeves,,, andof the standard size length (SL-) and of different widths SW-, SW-, SW-, and SW-are related by the following predefined formula:

wherein,

In another example, the height of the assembled pillow///comprising a pillowof the queen size (Q) inserted into each of the pillow sleeves,,, andof the queen size length (QL-) and of different widths QW-, QW-, QW-, and QW-is determined by the following predefined formula:

wherein,

In another example, the height of the assembled pillow///comprising a pillowof the king size (K) inserted into each of the pillow sleeves,,, andof the king size length (KL-) and of different widths KW-, KW-, KW-, and KW-is determined by the following predefined formula:

wherein,

The dimensions, for example, length, width, and height, in the above-recited formulas are measured in inches.

illustrate side elevation views of four assembled pillows,,, and, respectively, comprising a pillowof a single size assembled in each of four rectangular pillow sleeves,,, andhaving the same length (XL-) and four different widths XW-, XW-, XW-, and XW-and providing four different heights XH, XH, XH, and XH, where X is one of a standard size (S), a queen size (Q), and a king size (K). As illustrated in, four different heights XH, XH, XH, and XHare provided by inserting the same pillowof either a standard size, or a queen size, or a king size, into each of the four rectangular pillow sleeves,,, andhaving the same length (XL-), that is, either a standard size length (SL-), or a queen size length (QL-), or a king size length (KL-), and four different widths XW-, XW-, XW-, and XW-, and closing and fastening the pillowusing the zipper.

Consider an example where a user purchases the pillow sleeve kitillustrated in, comprising four rectangular pillow sleeves,,, andof the same standard size length (SL-) and four different widths SW-, SW-, SW-, and SW-, for a pillowof the standard size. The terms “first”, “second”, “third”, and “fourth” are used herein for descriptive purposes only and are not to be construed to indicate or imply relative importance. When the user selects a first rectangular pillow sleevehaving the standard size length (SL-) and the width (SW-) from the pillow sleeve kit, inserts the pillowof the standard size into the first rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the first rectangular pillow sleeveillustrated in, the user obtains an assembled pillowwith a different compression pressure (SP), a different fill density (SD), a different firmness, and a different height (SH) as illustrated inand. Similarly, when the user selects a second rectangular pillow sleevehaving the same standard size length (SL-) and the width (SW-) from the pillow sleeve kit, inserts the pillowof the standard size into the second rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the second rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (SP), a different fill density (SD), a different firmness, and a different height (SH) as illustrated inand. Similarly, when the user selects a third rectangular pillow sleevehaving the same standard size length (SL-) and the width (SW-) from the pillow sleeve kit, inserts the pillowof the standard size into the third rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the third rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (SP), a different fill density (SD), a different firmness, and a different height (SH) as illustrated inand. Similarly, when the user selects a fourth rectangular pillow sleevehaving the same standard size length (SL-) and the width (SW-) from the pillow sleeve kit, inserts the pillowof the standard size into the fourth rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the fourth rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (SP), a different fill density (SD), a different firmness, and a different height (SH) as illustrated inand.

Consider another example where the user purchases the pillow sleeve kitillustrated in, comprising four rectangular pillow sleeves,,, andof the same queen size length (QL-) and four different widths QW-, QW-, QW-, and QW-, for a pillowof the queen size. When the user selects a first rectangular pillow sleevehaving the queen size length (QL-) and the width (QW-) from the pillow sleeve kit, inserts the pillowof the queen size into the first rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the first rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (QP), a different fill density (QD), a different firmness, and a different height (QH) as illustrated inand. Similarly, when the user selects a second rectangular pillow sleevehaving the same queen size length (QL-) and the width (QW-) from the pillow sleeve kit, inserts the pillowof the queen size into the second rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the second rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (QP), a different fill density (QD), a different firmness, and a different height (QH) as illustrated inand. Similarly, when the user selects a third rectangular pillow sleevehaving the same queen size length (QL-) and the width (QW-) from the pillow sleeve kit, inserts the pillowof the queen size into the third rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the third rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (QP), a different fill density (QD), a different firmness, and a different height (QH) as illustrated inand. Similarly, when the user selects a fourth rectangular pillow sleevehaving the same queen size length (QL-) and the width (QW-) from the pillow sleeve kit, inserts the pillowof the queen size into the fourth rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the fourth rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (QP), a different fill density (QD), a different firmness, and a different height (QH) as illustrated inand.

Consider another example where the user purchases the pillow sleeve kitillustrated in, comprising four rectangular pillow sleeves,,, andof the same king size length (KL-) and four different widths KW-, KW-, KW-, and KW-, for a pillowof the king size. When the user selects a first rectangular pillow sleevehaving the king size length (KL-) and the width (KW-) from the pillow sleeve kit, inserts the pillowof the king size into the first rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the first rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (KP), a different fill density (KD), a different firmness, and a different height (KH) as illustrated inand. Similarly, when the user selects a second rectangular pillow sleevehaving the same king size length (KL-) and the width (KW-) from the pillow sleeve kit, inserts the pillowof the king size into the second rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the second rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (KP), a different fill density (KD), a different firmness, and a different height (KH) as illustrated inand. Similarly, when the user selects a third rectangular pillow sleevehaving the same king size length (KL-) and the width (KW-) from the pillow sleeve kit, inserts the pillowof the king size into the third rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the third rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (KP), a different fill density (KD), a different firmness, and a different height (KH) as illustrated inand. Similarly, when the user selects a fourth rectangular pillow sleevehaving the same king size length (KL-) and the width (KW-) from the pillow sleeve kit, inserts the pillowof the king size into the fourth rectangular pillow sleeve, and closes and fastens the pillowwithin the interior cavityof the fourth rectangular pillow sleeve, the user obtains an assembled pillowwith a different compression pressure (KP), a different fill density (KD), a different firmness, and a different height (KH) as illustrated inand. The user may then insert the assembled pillow///into a pillowcase that matches the user's bedding or bedsheets. Each of the assembled pillows,,, andallow a user to keep their head and neck supported at the proper height and at a desired pillow firmness for an extended time period, for example, all night long, for obtaining a refreshing and satisfying sleep with proper alignment of the user's spine.

illustrate top perspective views of an embodiment of a pillow sleevewith a zipperin an open condition. In an embodiment, a pillow sleeve kitcomprises a predetermined number of pillow sleevesof the type illustrated in. In an embodiment, each pillow sleeveis of a rectangular shape. Each pillow sleeveis of the same length selectable based on the size of a pillowto be inserted thereinto, and of a different width XW-, or XW-, or XW-, or XW-, configured to provide a user-selectable compression pressure, fill density, firmness, and height based on individual user comfort. The size of the pillowis a standard size, or a queen size, or a king size. Accordingly, the length of the pillow sleeveis a standard size length, or a queen size length, or a king size length. The pillow sleevecomprises a top memberand a bottom memberattached to each other to define an interior cavityillustrated in, for receiving the pillowillustrated in. One sideof the top memberis attached to a corresponding one sideof the bottom memberby a seam. A second side/, a third side/, and a fourth side/of each of the top memberand the bottom memberare attached by at least one zipper. In an embodiment, the zipperis configured to extend continuously along the second side/, the third side/, and the fourth side/of each of the top memberand the bottom memberof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-. The zippercomprises a pull taband a chain. The chainof the zipperextends along the second side/, the third side/, and the fourth side/of each of the top memberand the bottom memberof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-. A slider (not shown) connected to the pull tabof the zipperis configured to traverse along the chainon the second side/, the third side/, and the fourth side/of each of the top memberand the bottom memberof the pillow sleevein a counterclockwise direction and a clockwise direction to open and close the pillow sleeve, respectively. The pull tabwith its slider opens or closes the chainof the zipperto correspondingly open or close the pillow sleeve.

The zipperin an open condition is configured to allow insertion of the pillowinto the interior cavityof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-to obtain an assembled pillowin a closed condition as illustrated in. A different compression pressure, a different fill density, a different firmness, and a different height are provided by assembling the pillowin the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-as disclosed in the descriptions ofand.

illustrates a top perspective view of an embodiment of an assembled pillowcreated by inserting the pillowinto an interior cavityof the pillow sleeveshown in, and fastening the zipper. To assemble the pillowwithin the pillow sleeve, a user first opens the zipperof the pillow sleeveby pulling the pull tabalong the chain, for example, in a counterclockwise direction, to expose the interior cavityof the pillow sleeveas illustrated in. The user then disposes the pillowwithin the interior cavityon the bottom memberof the pillow sleeveand closes the top memberof the pillow sleeveover the pillow. The user then closes the zipperby pulling the pull tabalong the chain, for example, in a clockwise direction as illustrated in, to obtain the assembled pillowillustrated in.

illustrates a top perspective view of an embodiment of a pillow sleevewith a zipperin an open condition and flapsattached along an inner boundaryof a bottom memberof the pillow sleeve. In an embodiment, each pillow sleevein the pillow sleeve kit is of a rectangular shape. Each pillow sleeveis of the same length selectable based on the size of a pillowto be inserted thereinto as illustrated in, and of a different width XW-, or XW-, or XW-, or XW-, configured to provide a user-selectable compression pressure, fill density, firmness, and height based on individual user comfort. The size of the pillowis a standard size, or a queen size, or a king size. Accordingly, the length of the pillow sleeveis a standard size length, or a queen size length, or a king size length. The pillow sleevecomprises a top memberand a bottom memberattached to each other to define an interior cavityillustrated in, for receiving the pillowillustrated in. One sideof the top memberis attached to a corresponding one sideof the bottom memberby a seam. A second side/, a third side/, and a fourth side/of each of the top memberand the bottom memberare attached by at least one zipper. In an embodiment, the zipperis configured to extend continuously along the second side/, the third side/, and the fourth side/of each of the top memberand the bottom memberof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-as disclosed in the description of. The chainof the zipperextends along the second side/, the third side/, and the fourth side/of each of the top memberand the bottom memberof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-. The pull tabof the zipperis configured to open or close the chainof the zipperto correspondingly open or close the pillow sleeve.

The zipperin an open condition is configured to allow insertion of the pillowinto the interior cavityof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-as illustrated in, to obtain an assembled pillow in a closed condition. A different compression pressure, a different fill density, a different firmness, and a different height are provided by assembling the pillowin the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-as disclosed in the descriptions ofand.

In an embodiment, the pillow sleevefurther comprises flapsattached along the inner boundaryof the bottom memberof each pillow sleeveof the single length and the different widths. The inner boundaryextends below the sides,,, andof the bottom memberof the pillow sleeve. In an embodiment, the flapsare elongate members of a rectangular shape. The flapsare configured to receive the four sides,,, andof the pillowtucked thereunder to preclude an oversized pillowfrom interfering with closure of the zipper. The flapsare configured to be lifted to allow four sides,,, andof the pillowto be tucked thereunder. The flapsare further configured to serve as elongate pockets for accommodating the four sides,,, andof the pillow.

In an embodiment, the ends of each of the flapsare attached to corresponding ends of an adjacent one of the flaps, for example, by sewing. For example, the endsandof the adjacent flapsare sewn to each other; the endsandof the adjacent flapsare sewn to each other; the endsandof the adjacent flapsare sewn to each other; and the endsandof the adjacent flapsare sewn to each other as illustrated in, to form a continuous pocket at the inner boundaryof the bottom memberof the pillow sleevefor receiving the four sides,,, andof the pillow. The inner sidesof the flapsare left unsewn and open to allow tucking of the four sides,,, andof the pillowunderneath the flaps. In an embodiment, the flapsare made of flexible materials, for example, elastic materials. In another embodiment, the flapsare made of fabric materials, for example, cotton, silk, wool, polyester, etc.

illustrates a top perspective view of the embodiment of the pillow sleevewith the zipperin the open condition and the flapsshown in, showing positioning of a pillowfor assembly thereinto. A user may lift each of the flapsto tuck the four sides,,, andof the pillowthereunder.

illustrates a top perspective view of the embodiment of the pillow sleevewith the zipperin the open condition and the flapsshown in, showing the pillowtucked under the flaps. To assemble the pillowwithin the pillow sleeve, a user first opens the zipperof the pillow sleeveby pulling the pull tabalong the chain, for example, in a counterclockwise direction, to expose the interior cavityof the pillow sleeveas illustrated in. The user then lifts each of the flapsand tucks the four sides,,, andof the pillowunder the flapswithin the interior cavityon the bottom memberof the pillow sleeveas illustrated in. After the four sides,,, andof the pilloware secured under their respective flapsas illustrated in, the user closes the top memberof the pillow sleeveover the pillowand closes the zipperby pulling the pull tabalong the chain, for example, in a clockwise direction, to obtain the assembled pillowillustrated in.

illustrates a top perspective view of an embodiment of the assembled pillowcreated by inserting the pillowinto the interior cavityof the pillow sleeveshown in, and fastening the zipper.

illustrates a top perspective view of an embodiment of the pillow sleevewith three zippers,, andin an open condition, showing positioning of a pillowfor assembly thereinto. The pillow sleeveis of a single length selectable based on the size of the pillowto be inserted thereinto, and of a different width XW-, or XW-, or XW-, or XW-, configured to provide a user-selectable compression pressure, fill density, firmness, and height based on individual user comfort. The pillow sleevecomprises a top memberand a bottom memberattached to each other to define an interior cavityfor receiving the pillow. One sideof the top memberis attached to a corresponding one sideof the bottom memberby a seam. In this embodiment, a second side/, a third side/, and a fourth side/of each of the top memberand the bottom memberare attached by the three zippers,, and, respectively. The three zippers,, andare configured to extend individually along the second side/, the third side/, and the fourth side/of each of the top memberand the bottom memberof the pillow sleeveof the single length and the different width XW-, or XW-, or XW-, or XW-. The chainof the zipperextends along the second side/; the chainof the zipperextends along the third side/; and the chainof the zipperextends along the fourth side/, of each of the top memberand the bottom memberof the pillow sleeve. The pull tabs,, andof the zippers,, and, respectively, are configured to open or close the chains,, andof the zippers,, and, respectively, to correspondingly open or close the pillow sleeve. The zippers,, andcomprise retainer boxes,, and, respectively, configured to receive insert pins disposed on the chains,, andof the top memberto fasten the top memberto the bottom memberand close the pillow sleeve. For example, the zippercomprises a retainer boxconfigured to receive an insert pindisposed on the chainof the top memberas illustrated into fasten the second sideof the top memberto the second sideof the bottom member. Similarly, the third sideof the top memberis fastened to the third sideof the bottom member, and the fourth sideof the top memberis fastened to the fourth sideof the bottom member.