Abstract
A supporting pillow structure for a user to sleep or to perform sedentary activity facing down toward the pillow structure with the user's hands and arms placed below their face. Embodiments of the pillow structure may be configured to provide users with comfort and support while the user is seated leaning forward at a desk or table. Embodiments may be further configured to expand and compress, for example to inflate and deflate, into a compact easy to carry package.
Claims
1. An expandable and collapsible pillow structure comprising: a top surface bounding a substantially hemispherical top pillow portion; at least one side surface bounding a substantially frustoconical pedestal pillow portion with the top pillow portion atop the pedestal pillow portion; a substantially rounded base; and at least three openings, including; at least one face opening through the top surface of the pillow structure; at least two opposing arm openings extending inward from an outer edge of the at least one side surface forming a bored out arm receiver dimensioned to receive arms of a user through each opposing arm opening; a cavity in an internal region of the pillow structure and providing fluid communication between each opening, the cavity being accessible from the at least one face opening and the at least two arm openings; wherein the pedestal pillow portion and the top pillow portion can be in an expanded configuration, or in a collapsed configuration; and wherein the bored out arm receiver is operable to structurally bear one or more applied loads received by the at least one face opening without being substantially deformed thereby relieving pressure loading internal to the bored out arm receiver caused by the one or more applied loads when the pedestal pillow portion and the top pillow portion are in an expanded configuration.
2. The pillow structure of claim 1, wherein the at least one face opening is substantially circular.
3. The pillow structure of claim 1, wherein the face opening further comprises a rim for the user's face to lean into the pillow structure for support.
4. The pillow structure of claim 1, wherein the expanded configuration and the collapsed configuration are achieved through an addition or a removal of air or gas.
5. The pillow structure of claim 4, wherein the addition or the removal of air or gas in the top pillow portion is separate from the addition or the removal of air or gas in the pedestal pillow portion.
6. The pillow structure of claim 4, further comprising at least one valve to control the addition or the removal of air or gas.
7. The pillow structure of claim 4, further comprising at least one pump to facilitate the addition or the removal of air or gas.
8. The pillow structure of claim 1, wherein the pillow structure is made from at least one material.
9. The pillow structure of claim 1, where in the pillow structure is made from at least two different materials.
10. The pillow structure of claim 1, further comprising a separate removable cover.
11. The pillow structure of claim 1, further comprising a locking mechanism.
12. The pillow structure of claim 1, further comprising a carrying and/or storage case.
13. The pillow structure of claim 1, further comprising a fourth opening, wherein the fourth opening provides additional air circulation to the cavity, increases the amount of light in the cavity, or enables passage of cords to the cavity.
14. The pillow structure of claim 13, wherein the fourth opening is located on the at least one side surface.
15. The pillow structure of claim 13, wherein the fourth opening is located on the top surface.
16. A method for a user to sleep or rest in a semi-upright position, the method comprising: placing the pillow structure of claim 1 on a raised surface; placing the user's head on top surface of the pillow structure; optionally placing a book or device inside the cavity; and optionally placing at least a portion of the user's arm in one of the at least two side openings.
17. The method of claim 16, wherein the user is seated.
18. The method of claim 16, wherein the raised surface is a table top.
19. The method of claim 16, wherein the raised surface is located on a transportation vehicle.
20. The method of claim 16, wherein the raised surface is an airline tray table.
Description
BRIEF DESCRIPTION OF THE FIGURES
[0020] FIG. 1 is a perspective view of a non-limiting embodiment of an expandable/collapsible pillow structure in an inflated or expanded configuration.
[0021] FIG. 2 is a perspective view of a non-limiting embodiment of an expandable/collapsible pillow structure in a fully compressed or deflated configuration.
[0022] FIG. 3 is a side view of a non-limiting embodiment of an expandable/collapsible pillow structure in an inflated or expanded configuration.
[0023] FIG. 4 is a perspective view of a non-limiting embodiment of an expandable/collapsible pillow structure during initial stages of compression or deflation of the pillow structure.
[0024] FIG. 5 is a perspective view of a non-limiting embodiment of an expandable/collapsible pillow structure in a later stage of compression or deflation of the pillow structure.
[0025] FIG. 6 is a perspective view of a non-limiting embodiment of an expandable/collapsible pillow structure in a later stage of compression or deflation of the pillow structure.
[0026] FIG. 7 is a perspective view of a non-limiting embodiment of a carrying case configured to hold and transport the compressed or deflated pillow structure shown in FIG. 2.
[0027] FIG. 8 is a perspective view of a non-limiting embodiment of a compressed or deflated pillow structure folded in half to yield a half-circular shape.
[0028] FIG. 9 is a perspective view of a non-limiting embodiment of a compressed or deflated pillow structure folded in quarters to yield a quarter-circular shape.
[0029] FIG. 10 is a perspective view of a non-limiting embodiment of a carrying case.
[0030] FIG. 11 is a side view of a non-limiting embodiment of an expandable/collapsible pillow structure.
[0031] FIG. 12 is a side view of a non-limiting embodiment of an expandable/collapsible pillow structure during initial stages of compression or deflation of the pillow structure.
[0032] FIG. 13 is a perspective view of a non-limiting embodiment of an expandable/collapsible pillow structure in a fully compressed or deflated configuration.
[0033] FIG. 14 is a side view of a non-limiting embodiment of an expanded pillow structure with the locking mechanism locking it open.
[0034] FIG. 15 is a side view of a non-limiting embodiment of an expanded pillow structure with the locking mechanism locking it open.
[0035] FIG. 16 is a perspective view of a non-limiting embodiment of an expanded/collapsible pillow structure in an inflated or expanded configuration.
[0036] FIG. 17 is a perspective view of a non-limiting embodiment of an expanded pillow structure in use by a person.
DESCRIPTION
[0037] The disclosure is directed to an expandable and collapsible pillow structure (herein referred to as pillow structure). In one embodiment, the pillow structure is designed to be used on an elevated surface such as a desk or table top. In another embodiment, the pillow structure is designed to be used on a fold down tray table such as those on the back of an airplane seat. In another embodiment, the pillow structure is designed to be used when the user is seated near an elevated surface. In another embodiment, the pillow structure is designed to be used by a person traveling. In a non-limiting embodiment, the pillow structure is designed to be compressed or collapsed into a smaller size for ease of carrying or packing. In one embodiment, the pillow structure is inflatable and deflatable.
[0038] Disclosed hereinafter and shown in accompanying FIGS. 1 to 16 are non-limiting embodiments of an expandable/collapsible pillow structure that further includes the capability of assuming two configurations: a first expanded or inflated configuration with non-limiting embodiments shown in FIGS. 1, 3, 11, 14, 15, 16, and 17 and a second collapsed, compressed or deflated configuration with non-limiting embodiments shown in FIGS. 2, 8, 9, and 13. The second configuration, i.e. collapsed/deflated configuration, provides a compact, easily portable package. The first configuration may be referred to as an “expanded” or “inflated” or “user ready” pillow structure and the terms are used interchangeably throughout the specification. The second configuration may be referred to as a “collapsed” or “compressed” or “deflated” or “stored” or “packed” pillow structure and the terms are used interchangeably throughout the specification. When the terms “one,” “a,” or “an” are used in this disclosure, they mean “at least one” or “one or more,” unless otherwise indicated
[0039] In some embodiments the first configuration can be deflated and compressed to form the second configuration, and the second configuration can be inflated and expanded to form the first configuration. In other embodiments expansion may be accomplished without manually or automatically inflating with air. Likewise, in other embodiments compression may be accomplished without manually or automatically deflating.
[0040] FIG. 1 illustrates a perspective view of a non-limiting embodiment of the pillow structure in the first configuration. In this configuration, pillow structure 1 is in its expanded form, suitable for use as a pillow in a situation where a user is seated near a raised surface such as coach seating on an airplane. In one embodiment, the general shape of the pillow structure in this configuration is similar to the pillow described in U.S. Pat. No. 9,131,792, entitled “Pillow Structure”, the entire contents of which are hereby incorporated by reference in their entirety.
[0041] Continuing to refer to FIG. 1, in this embodiment, the pillow structure 1 has a top surface 2, at least one side surface 3, and a base 4. In this embodiment, the top surface 2 is roughly hemispherical in shape and bounds a “top” or “top pillow” portion. The top surface has at least one opening 5, which may be referred to as a “top opening” or “face opening”. The top opening extends inward into the top pillow portion. The top opening 5 has a rim 6 and a cut out 7. The face opening 5, rim 6, cut out 7 may be jointly referred to as the “rim portion” 8 of the pillow structure. The rim portion is designed to provide a comfortable resting place for the user's face. Rim 6 supports the user's face and can be any width or shape. In one embodiment, the rim 6 can be rounded and is about an inch or two wide. In another embodiment, the rim can extend into the top opening. Cut out 7 provides additional support for the user's face or chin to rest when the user's face is place in the top opening 5. Cut out 7 can also provides additional air circulation and flow near the user's mouth when the user's face is placed in the top opening 5. In another embodiment, the top opening is roughly circular in shape with cut out 7 located in the lower portion. The top opening can be placed anywhere on the top surface. In one embodiment, the top opening is at angled at a slight and gradual incline. In another embodiment, the top opening is substantially at the top of the pillow structure but not necessarily at the apex of the pillow structure. In another embodiment, the angle of the top opening is between 10 and 80 degrees when compared to a horizontal axis. In another embodiment, the angle of the top opening is between 20 and 70 degrees when compared to a horizontal axis. In another embodiment, the angle of the top opening is between 30 and 50 degrees when compared to a horizontal axis. In another embodiment, the angle of the top opening is about 35 to 45 degrees when compared to a horizontal axis.
[0042] Continuing to refer to FIG. 1, in this embodiment, the side surface 3 is rounded without delineated edges and roughly bounds a frustoconical or cylindrical in shape which serves as a “pedestal” or “pedestal pillow” portion or “lower” or “lower pillow” portion. The pedestal pillow portion supports the top pillow portion. Side surface 3 has at least two openings 9 (only one visible), which may be referred to as a “side opening” or “arm opening”. Two of the at least two openings are on opposing sides of the side surface, extending inward from the sides. In one embodiment, two of the at least two openings 9 form a “tunnel” that passed through the pedestal pillow portion. In another embodiment, the tunnel is large enough to provide adequate room for a user's arms and hands to be placed inside. In another embodiment, side surface 3 has at least three openings.
[0043] Continuing to refer to FIG. 1, in this embodiment, base 4 is the pedestal pillow portion opposite the top pillow portion. In general, base 4 is the portion of the pillow structure that contacts the elevated surface upon which the pillow sits. In one embodiment, the base can be roughly circular in shape. In one embodiment the base can be disk shaped (see FIG. 1). In another embodiment, the base can be ring shaped, e.g. the lower edge of the pedestal pillow portion (see for example, FIG. 17). In another embodiment, the base is the lower or contact edge of the pedestal pillow portion. In one embodiment the base 4 is wide enough to maintain stability when the pillow structure is in use. In another embodiment, the diameter of the base 4 is smaller than the vertical height of the pillow structure. In another embodiment, the pillow is substantially taller than its horizontal length or width.
[0044] Continuing to refer to FIG. 1, the pillow structure 1 in its first configuration (i.e. expanded), has an internal cavity 10. The internal cavity is formed from the joining of the at least one top opening 2 and at least two side openings 9. In one embodiment, the at least two side openings are large enough to insert an object into the internal cavity such as a mobile device, phone, table, gaming device or other device. The at least two side openings can also provide space for a power cord or wire for headphones. In another embodiment, the cavity is formed from the joining of the at least one top opening and at least three side openings. In this embodiment, the third side opening can be used to pass cords to electronic devices placed inside of the internal cavity. Alternatively, in this embodiment, the third side opening can be use to illuminate the internal cavity or increase air circulation or flow into the cavity.
[0045] In one embodiment, the entire pillow structure can be made from one material. In another embodiment, the pillow structure can be made from at least two different materials. In another embodiment, the pedestal portion bounded by side surface 3 and base 4 and the hemispherical portion bounded by top surface 2 can be composed of a first material, whereas rim 6, cut-out region 7, optionally face opening 5 (which, in one embodiment, corresponds to the thickness dimension of rim 6), and optionally side opening 9 can be made of a second material. In another embodiment, side surface 3 and top surface 2 can be composed of a first material, rim 6, cut-out portion 7, optionally face opening 5, and optionally side opening 9 can be composed of a second material, and base 4 can be composed of a third material.
[0046] In one embodiment, various materials can be used to make the described pillow structure. In another embodiment, the material can be a material that is puncture resistant and capable of being hermetically sealed (i.e. holding air or gas). In another embodiment, the material can be flexible enough to fold or roll up when in a collapsed state yet rigid enough to maintain form when in an expanded state. In another embodiment, the material can have multiple textures or different textures from one side to the other, either left to right or front to back. In another embodiment, the material can be a material that is capable of expansion and collapsing. Non-limiting examples of materials include plastics, canvass, polymers, films, vinyl, polyvinyl chloride, urethane, rubber, treated fabric, memory foam or beaded foam, down, feathers, or other pillow or foam materials, materials having a soft surface (e.g. cotton, fleece, animal skin, polyester, etc.), multi-layer materials, etc.
[0047] In another embodiment (not shown), a separate removable cover can be used. The separate removable cover can help keep the pillow cleaner. The separate removable cover can help reduce the wear and tear on the pillow structure. The separate removable cover can be made from any material that is comfortable against a user's skin. The separate removable cover can be made from a cleanable or washable material. In general, the separate removable cover is designed to maintain the face opening of the pillow structure when it is on the pillow structure. In one embodiment, the separate removable cover covers a portion of the top pillow portion, mainly the top opening. In another embodiment, the separate removable cover covers the entire top pillow portion. In another embodiment, the separate removable cover covers the entire top pillow portion and a portion of the pedestal pillow portion. In another embodiment, the separate removable cover covers the entire pillow structure. In this embodiment, the removable cover includes openings that align with the side openings in the pedestal pillow portion. The separate removable cover can be held in place using a variety of mechanisms. Non-limiting mechanisms include elastic, ties, hook and loop (e.g. Velcro® brand), frog closures, magnets, buttons, etc.).
[0048] In one embodiment, pillow structure 1 can be inflatable/deflatable. In the inflatable/deflatable embodiment, pillow structure 1 can have portions that are inflatable/deflatable and portions that are not inflatable/deflatable. In one embodiment, the non-inflatable/deflatable portions can include the rim 6, cut-out 7, and optionally face opening 5. In another embodiment, the inflatable/deflatable portions of pillow structure 1 can include the top hemispherical portion and the pedestal portion, together referred to as the “inflatable portion” 11 of the pillow structure. In another embodiment, the inflatable/deflatable top hemispherical and pedestal portion are joined such that air can move from the top into the pedestal or vice versa. In another embodiment, the inflatable/deflatable top and pedestal portions are separate and air cannot move from the top into the pedestal or vice versa. In this embodiment, the user can adjust the firmness of the top portion separately from the firmness of the pedestal portion. For example, the top portion can be softer than the pedestal portion or vice versa.
[0049] In the inflatable/deflatable embodiments of the pillow structure, the inflatable/deflatable portions of the pillow structure (e.g. top surface 2, side surface 3, optionally rim portion 8, and optionally base 4) comprise multi-layer surfaces. The multi-layer surfaces have an interior region between the layers that is closed or sealed off from the exterior, and can accept and contain gas such as air pumped or blown there into. When the gas or air is pumped into the interior, the pedestal and hemispherical regions inflate and expand to assume the form of the first configuration. In one embodiment, the multi-layer surfaces include at least two layers. In another embodiment, the multi-layer surfaces include at least three layers. In another embodiment, the interior regions further include baffles or other structures that help control the air flow and/or restrict air movement.
[0050] FIG. 2 illustrates a perspective view of a non-limiting embodiment of the second configuration (i.e. compressed/deflated) of the pillow structure. In this configuration, pillow structure 1 is in its largely compressed form, suitable for convenient carrying and transport.
[0051] FIG. 3 is a side view of a non-limiting embodiment of the first configuration of the pillow structure, i.e., in its fully inflated form. Visible in this view is valve 12 in its closed off position. When the pillow structure is in its inflated configuration, the valve is closed off to prevent leakage of air out of the pillow. Feature 13 is an optional pump which may be integrated into the pillow structure. Having such an integrated pump would obviate the need to either blow up the pillow structure manually (e.g. by blowing into valve 12), or to attach an outside pump such as a bellows or bicycle pump or other pump means available in the market. Integrated pump 13 could be positioned either external to (as shown in the drawing) or internal to inflatable/deflatable portion 11 of the pillow structure. No matter where the pump itself was positioned, its output would have to be pumped into the interior of inflatable portion 11, to inflate the pillow structure. In one embodiment, air would be pumped into the interior of inflatable/deflatable portion 11 via pump inlet 14, which may also include a shut-off 15 which would prevent leakage when the pump was off. Also shown is start button 16, which could be pressed to initiate an automated inflation process. Such an integrated pump mechanism in one embodiment would be battery powered. In another embodiment, the integrated pump further includes a pressure sensor. In another embodiment, the integrated pump further includes an automatic shut off. The automatic shut off can be activated based on the amount of time the pump runs or can be tied to a pressure sensor.
[0052] FIG. 4 is a perspective view during initial stages of deflation of a non-limiting embodiment of the inflatable/deflatable pillow structure. To deflate, valve 12 is opened (which may be accomplished by pulling out valve stopper 17), allowing air to escape from the inflatable portion. FIG. 4 also shows the arm opening 9 collapsing downward, and the vertical height of the pedestal portion decreasing as deflation occurs.
[0053] FIGS. 5 and 6 show sequentially later stages of deflation of a non-limiting embodiment of the inflatable/deflatable seated pillow structure. Arm opening 9 collapses completely, the pedestal portion also collapses vertically, until rim portion 8 lies essentially horizontally atop collapsed inflatable/deflatable portion 11.
[0054] As the remaining air is let out from the mostly deflated stage shown in FIG. 6, the pillow structure assumes the fully deflated form of the second configuration, shown in FIG. 2.
[0055] FIG. 7 illustrates a non-limiting example of a carrying case 18 configured to hold and transport the deflated pillow structure shown in FIG. 2. Closing mechanism 19 allows easy packing. Non-limiting examples of closing mechanisms include zippers (illustrated), hook and loop (e.g. Velcro® closures), and snaps. Attachment mechanism 20 enables attaching carrying case 18 to a suitcase, luggage rack, or belt by way of example. Non-limiting examples of attachment mechanisms include clips, carabiners, hook and loop (e.g. Velcro closures), and buckles.
[0056] FIGS. 8 and 9 illustrate further compaction of the deflated pillow structure shown in FIG. 2. FIG. 8 shows folding the deflated pillow structure once in half to yield a half-circular shape, and FIG. 9 shows folding the deflated pillow structure two times in half to yield a quarter-circular shape. FIG. 10 shows a non-limiting example of a quarter-circular carrying case, thick enough to accept the twice folded deflated pillow structure.
[0057] FIG. 11 illustrates a side view of another non-limiting embodiment of the expandable/collapsible pillow structure, in its first, i.e., fully expanded, configuration. In this embodiment, top surface 2 and side surface 3 are constructed of a plurality of accordion folds 21, for the purpose of enabling a predetermined accordion-like deflated configuration, rather than a simple collapse during deflation, as demonstrated in an earlier embodiment. The number of accordion folds can vary; in the figure, there are numerous such folds, both on the top surface 2 of the hemispherical portion, and on the side surface 3 of the pedestal portion. However, in other embodiments, there may be a much smaller number of accordion folds.
[0058] Other than the difference in the top surface and side surface between the accordion folds in this embodiment and absence thereof in an earlier embodiment, the two embodiments of the expandable/collapsible pillow structure share the same features as discussed in detail in paragraphs 40 through 49 above and briefly discussed below.
[0059] As in the earlier embodiment of the expandable/collapsible pillow structure, the pedestal portion of this embodiment, bounded by side surface 3 and the hemispherical portion bounded by top surface 2, are composed of a first material, whereas the rim, face opening (which corresponds to the thickness dimension of the rim), and cut-out region, are made of a second material. The pedestal portion and the hemispherical portion are connected and inflatable. This implies that those portions of the pillow structure have an interior region between the exterior walls (i.e., the sides) that is closed or sealed off from the exterior, and can accept gas such as air pumped or blown there into. The interior of the pedestal portion and the hemispherical portion communicate with one another, i.e. are connected and form one combined interior. When the gas or air is pumped into the interior, the pedestal and hemispherical regions inflate and expand to assume the form of the first configuration. The inflatable/deflatable pedestal and hemispherical portions this embodiment of the expandable/collapsible pillow structure are together referred to as the inflatable portion 11. An optional pump (not shown) can be integrated into this embodiment similarly to the way it can be integrated into the earlier embodiment shown in FIG. 3.
[0060] The rim, face opening (not shown), and cut-out regions (not shown) are together referred to as the rim portion 8. The rim portion is designed to provide a comfortable resting place for the user's face, and in some embodiments is not made to be inflatable. The rim portion may be comprised of a soft comfortable material such as memory foam or beaded foam or down or feathers or other pillow or foam materials, and may have a soft surface covering such as cotton, fleece, animal skin, polyester, by way of example.
[0061] FIG. 12 is a side view during initial stages of deflation of the non-limiting embodiment shown in FIG. 11. To deflate, valve 12 is opened, allowing deflation to take place. In an embodiment of the partially deflated stage, in the first step, rim portion 8 is tilted to a more horizontal position, compressing the accordion folds of top surface 2, thereby deflating the hemispherical portion.
[0062] FIG. 13 is a side view of the non-limiting embodiment shown in FIG. 11 in its second configuration, i.e. fully deflated stage. Following the full compression of the accordion folds of top surface 2, the accordion folds of side surface 3 are compressed, thereby deflating the pedestal portion and yielding the fully compressed and deflated configuration shown in the figure. In one embodiment, having the accordion folds yields a neat and compact second configuration.
[0063] FIG. 14 is a side view of an expanded configuration of another non-limiting embodiment of the expandable/collapsible pillow structure incorporating a locking mechanism. This embodiment may include inflatability, or alternately it may be expandable and compressible without inflation or deflation. In this embodiment, a locking mechanism 22 engages to maintain the pillow structure in its expanded configuration. The locking mechanism can take many forms, non-limiting examples include a latch that pops into place when the expansion is complete or a locking hinge. If the structure is expanded, such a locking mechanism could provide robustness to keep the structure in its fully expanded configuration, whether or not inflated. Additionally, the locking mechanism could enable a purely mechanical expansion in place of inflation. The pillow structure could be opened and then locked into its opened, expanded position.
[0064] FIG. 15 is a side view of an expanded configuration of another non-limiting embodiment with both accordion folds and a locking mechanism. FIG. 15 also shows the accordion folds adapted to being manually unfolded (in the directions of the arrows on the figure), such that the pedestal portion and hemispherical portion, which together are referred to as the expandable portion 11, open and cause portion 11 to expand. Locking mechanism 22 is then engaged to hold the pillow structure in its open, expanded configuration. The locking mechanism 22 can then be disengaged to allow the pillow structure to close into the compressed configuration. The locking mechanism can take various forms. Non-limiting mechanical locking mechanisms include those similar to those on folding chairs or tables may be used, a hinged mechanism (shown on the figure), those similar to children's expandable plastic cups, wherein the rings click into an open configuration as the top ring is lifted and others. In some embodiments, an air inlet into the interior of the expandable portion can be included to account for the volume will increase as the structure is expanded.
[0065] FIG. 16 is a perspective view of a non-limiting embodiment of the expandable/collapsible pillow structure. In this embodiment, the face opening has a much larger rim and the base is the ring shaped lower portion of the pedestal pillow.
[0066] FIG. 17 is a perspective view of a non-limiting embodiment of a user using the expandable/collapsible pillow structure. In this embodiment, the pillow structure is being used on the surface of a pull down tray located on the back of an airline seat. The pillow is shaped such that the user 23 is in a comfortable position that reduces strain on the neck, shoulders, arms, hands, and waist/hips. The user's head position 24 is higher than the body 25. The higher head position allows the use to place her arms 26 and hands 27 in the tunnel like side openings. The user leans forward into the pillow structure, placing her face into the top opening 5 without leaning too far at the waist or hips. The placement of the arms into the side openings leaves allows the arms to remain substantially perpendicular to the user's body 25. In another embodiment, the user can place her arms around the pedestal pillow portion instead of placing the hands and arms in the side openings.
[0067] In another embodiment (not shown), the user can lay the side of her head on a section of the top pillow that does not have a top opening. In this embodiment, it may be more comfortable for the user to only place one arm and hand though the side openings.
[0068] In one inflatable/deflatable embodiment, the weight of the user's head on the top pillow portion increases the air pressure in the pedestal pillow portion. The increased air pressure in the pedestal pillow portion provides additional structural support ensuring that the at least two side openings do not deform or collapse. Keeping pressure off the arms allows for proper blood circulation and reduces or prevents the arms from “falling asleep” due to lack of blood circulation. The use of a locking device can also help prevent the side openings from deforming or collapsing.
[0069] While the disclosure has been illustrated and described in detail in the foregoing description, such description is to be considered illustrative or exemplary and not restrictive. The disclosure is not limited to the disclosed embodiments. Modifications to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed disclosure, from a study of the disclosure and the appended claims. For example, other materials can be used to manufacture the pillow structure other than those listed.
