Positional Support Pillow for Preventing Supine Sleeping

Description

FIELD

The present disclosure relates generally to sleep positioning devices, and more particularly to a positional pillow configured to encourage side-sleeping and reduce the tendency of a user to roll onto their back during sleep.

BACKGROUND

Sleep posture significantly affects airflow and respiratory health. Many individuals experience breathing difficulties, airway obstruction, or sleep apnea when sleeping in the supine position. When a person lies on their back, the tongue and soft tissues of the throat can relax backward, partially blocking the airway and restricting oxygen flow to the lungs and brain. This condition, known as obstructive sleep apnea (OSA), can result in oxygen desaturation, disrupted sleep, and long-term cardiovascular and neurological consequences.

Side-sleeping has been clinically shown to reduce airway collapse and improve oxygenation in patients prone to sleep apnea or snoring. However, many users have difficulty maintaining a side-sleeping posture throughout the night. During sleep, unconscious body movement often causes users to roll onto their back, negating the therapeutic benefits of side positioning. There is a need for a positioning device that can prevent users from rolling onto their back during sleep while avoiding the creation of localized pressure points or damage to the back. Such a device should maintain proper body alignment, promote comfort, and provide broad, evenly distributed support to minimize the risk of discomfort or injury.

Accordingly, there remains a need for a lightweight, comfortable, and ergonomically shaped positioning pillow that can be securely attached to the user to reliably maintain a side-sleeping posture throughout the night. The ideal device should help users remain in a lateral position without applying harmful or concentrated pressure to the back, thereby enhancing comfort, reducing the likelihood of unintentional supine rolling, and mitigating sleep-related breathing problems.

SUMMARY

The present disclosure provides a positional support pillow designed to promote side-sleeping and deter the user from rolling onto their back during sleep. In one embodiment, the positional support pillow provides a pillow having a body shaped as a triangular prism. The triangular prism includes a top surface, a bottom surface, a front surface, a left surface, and a right surface, and is configured to rest comfortably against the user's back. The prism shape establishes two broad, angular surfaces that support the user's body in a lateral position and may evenly distribute contact forces to avoid localized pressure or discomfort. In some embodiments, the prism is equilateral, providing a balanced degree of compressibility and consistent support whether the user lies on their left or right side.

The pillow further includes multiple attachment portions positioned along the sides of the prism, such as top, bottom, and optional mid-side attachment points. One or more adjustable straps are coupled to these attachment portions to secure the pillow to the user's back. When properly fastened, the strap system increases the force required for the user to roll onto their back, thereby maintaining a lateral sleeping position throughout the night without restricting natural movement or comfort.

Each attachment portion may include a loop configured to receive a strap therethrough, enabling flexible attachment and removal. The strap may include hook-and-loop fastening portions that allow the user to secure and adjust tension easily. In some embodiments, the strap may also include elastic segments to enhance comfort and permit slight movement while maintaining positional stability.

To further improve the user's sleeping experience, at least one external surface of the pillow may incorporate a cool gel fabric or other thermally conductive material. This feature aids in dissipating heat and maintaining a comfortable temperature throughout the night. The positional support pillow also encompasses a method of reducing a user's tendency to roll onto their back during sleep, including the steps of positioning the triangular-prism-shaped pillow against the user's back, securing it using one or more straps, and orienting the pillow such that its planar surfaces engage the mattress to provide stable, balanced support. The method effectively increases the resistance to supine rolling, helping the user remain in a side-sleeping position while reducing pressure concentration on the back and improving sleep quality.

Overall, the positional support pillow provides a lightweight, ergonomic, and user-friendly positioning system that promotes healthier sleep posture, enhances comfort, and reduces risks associated with back-sleeping, such as airway obstruction and sleep apnea.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a positional support pillow.

FIG. 2 is another perspective view of a positional support pillow.

FIG. 3 is a perspective view showing a user in a lateral sleeping position while wearing a positional support pillow secured to the user's back.

DETAILED DESCRIPTION

The following detailed description illustrates embodiments of the present disclosure. These embodiments are described in sufficient detail to enable a person of ordinary skill in the art to practice these embodiments without undue experimentation. It should be understood, however, that the embodiments and examples described herein are given by way of illustration only, and not by way of limitation. Various substitutions, modifications, additions, and rearrangements may be made that remain potential applications of the disclosed techniques. Therefore, the description that follows is not to be taken as limiting on the scope of the appended claims. In particular, an element associated with a particular embodiment should not be limited to association with that particular embodiment but should be assumed to be capable of association with any embodiment discussed herein.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In case of conflict, the present disclosure, including any definitions provided herein, shall control. The materials, methods, and examples disclosed herein are illustrative only and are not intended to be limiting. Methods and materials similar or equivalent to those described herein can be used in the practice or testing of the disclosed invention. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety, to the extent that they do not conflict with the disclosure provided in this document. As used in this application, the terms “comprise(s),” “include(s),” “having,” “has,” “can,” “contain(s),” and variants thereof are intended to be open-ended transitional phrases or terms that do not preclude the presence of additional elements or steps. The singular forms “a,” “an,” and “the” also include plural forms unless the context clearly dictates otherwise. The present disclosure also contemplates embodiments comprising, consisting of, or consisting essentially of the elements or features described herein, whether explicitly set forth or not.

Codification

• • 500—positional support pillow
  • 100—triangular prism
  • 101—triangular prism top surface area
  • 102—triangular prism right surface area
  • 103—triangular prism left surface area
  • 104—triangular prism bottom surface area
  • 105—triangular prism front surface area
  • 201—top left attachment portion
  • 202—top right attachment portion
  • 203—mid left attachment portion
  • 204—mid right attachment portion
  • 205—bottom mid left attachment portion
  • 206—bottom mid right attachment portion
  • 207—bottom left attachment portion
  • 208—bottom right attachment portion
  • 211—top horizontal left attachment portion
  • 212—top horizontal right attachment portion
  • 300—strap
  • 301—hook portion
  • 302—loop portion

Referring now to FIG. 1, a positional support pillow (500) constructed in accordance with an embodiment of the present disclosure is shown. The positional support pillow includes a triangular prism body (100) showing a top surface area (101), a right surface area (102), and a front surface area (105). A plurality of attachment portions (201-208, 211, 212) are positioned at various locations along the body, each configured to receive a strap (300) via an attachment loop. The strap includes a hook portion (301) and a loop portion (302) that together form a hook-and-loop fastening system for adjustable attachment to the user.

Referring to FIG. 2, the positional support pillow (500) further illustrates the left surface area (103) and bottom surface area (104) of the triangular prism (100).

Referring to FIG. 3, a perspective view illustrates a user positioned in a lateral sleeping posture while wearing a positional support pillow (500), which is secured to the user's back by one or more straps. The support pillow showing within the illustration the triangular prism bottom surface area (104), and the right surface area (102). The configuration illustrated maintains the user in a side-sleeping orientation and reduces the likelihood of the user rolling into a supine position during sleep.

Structure of the Pillow Body

In one embodiment, the pillow includes a body having the shape of a triangular prism (100). The triangular prism defines a top surface (101), a bottom surface (104), a front surface (105), a left surface (103), and a right surface (102). The body may be fabricated from a resilient, compressible material such as polyurethane foam, memory foam, latex foam, gel-infused foam, or multilayer foam combinations that balance firmness and comfort.

The pillow body may include an outer fabric cover formed from breathable materials such as cotton, polyester, bamboo fiber, or a blended knit. In some embodiments, the cover incorporates cool-gel fabric or a phase-change cooling layer integrated into the top or side surfaces to enhance thermal regulation by absorbing and dissipating body heat during sleep.

In certain embodiments, the triangular prism (100) is equilateral, such that the three rectangular faces between its longitudinal edges are equal in dimension. This equilateral geometry provides balanced compressibility and allows the user to lie comfortably on either lateral side while maintaining a stable angle between the body and the sleeping surface. The geometry also causes the vertex region of the prism to generate distributed resistance across two adjacent planar surfaces when the user attempts to roll backward, thereby increasing the effort required to enter a supine position without creating localized pressure points.

Attachment Portions and Strap Configuration

The pillow includes multiple attachment portions (201-208, 211, 212) positioned along the surface areas of the triangular prism (100). In one embodiment, the body comprises a top-left attachment portion (201), a top-right attachment portion (202), a bottom-left attachment portion (207), and a bottom-right attachment portion (208). Each attachment portion may comprise a reinforced loop (attachment loop), fabric ring, or anchoring tab affixed to the outer cover or embedded within the pillow body to resist tensile loading from the straps (300).

In some embodiments, the pillow further includes a mid-left attachment portion (203) and a mid-right attachment portion (204) disposed approximately midway between the corresponding top and bottom attachment portions. These intermediate connection points allow for additional strap placement to increase stability and customize fit for different user body sizes.

Each attachment portion (201-208, 211, 212) is configured to receive one or more straps (300) therethrough. The straps may be fabricated from woven nylon, polyester webbing, elastic fabric, or other durable materials suitable for repeated adjustment. The strap (300) may pass through a loop of the attachment portion and be secured upon itself via a hook-and-loop fastening system. The strap may further include complementary hook and loop portions (301, 302) disposed on opposite ends to allow adjustable engagement and release.

In certain embodiments, the strap (300) includes a loop hole or secondary aperture configured to interlock with another strap, enabling cross-strapping around the torso for enhanced retention. The strap may also include an elastic segment positioned near its midpoint or distal end to allow limited stretch under tension. This elasticity maintains positional security while permitting natural breathing expansion and movement during sleep.

Functional Arrangement

In operation, the user places the pillow against their back while lying on their side. One or more straps (300) are then wrapped around the user's torso and secured to the opposite attachment portions (201-208, 211, 212) so that the pillow is held snugly against the user's back. The strap tension may be manually adjusted to achieve a comfortable yet secure fit.

When the user attempts to roll backward into a supine position, the triangular cross-section of the pillow (100) resists rotation. The sloped surfaces of the prism engage the mattress or other supporting surface, thereby increasing the force required to continue rolling. Because resistance is spread across the two adjacent planar surfaces rather than concentrated at a single ridge, pressure distribution is uniform, minimizing the risk of back soreness or localized strain.

In some embodiments, the user's back rests against the front surface area (105) of the triangular prism (100), while the opposing vertex region forms a stable contact with the mattress. The geometry and placement together provide a passive mechanical deterrent against supine rolling while maintaining ergonomic comfort.

Materials and Construction

The pillow body may be constructed as a solid foam block, a multi-layer laminate, or a removable core enclosed in a washable cover. The cover may incorporate zippers or hidden seams to facilitate removal and cleaning.

The cool-gel fabric layer may be integrated into the cover or bonded to an external surface of the foam body using breathable adhesive. Alternative embodiments may employ air-flow channels, perforations, or vented side panels to promote temperature regulation.

Each loop or attachment portion (201-208, 211, 212) may be stitched, heat-sealed, or molded integrally with the cover to prevent detachment under tension. Reinforcement panels or internal anchor plates may be added at high-stress regions within the foam core to prevent tearing or deformation after prolonged use.

Method of Use

A method of reducing a user's tendency to roll onto their back during sleep includes the following steps:

• • 1. Providing a pillow having a body in the shape of a triangular prism (100) with left and right attachment portions (201-208, 211, 212).
  • 2. Providing one or more adjustable straps (300) configured to engage the attachment portions (201-208, 211, 212).
  • 3. Positioning the pillow against the user's back with the triangular prism (100) oriented such that one or more planar surfaces contact the mattress.
  • 4. Securing the pillow to the user's torso using the straps (300), optionally by passing the straps through loops and fastening via hook-and-loop engagement (301, 302).
  • 5. Adjusting strap tension to achieve a comfortable fit.
  • 6. During sleep, allowing the triangular-prism geometry (100) to resist supine rotation by distributing force along two adjacent planes instead of concentrating pressure at a single contact point.
  • 7. Optionally, employing a cool-gel surface to regulate temperature and maintain comfort through the night.

This configuration provides an effective, comfortable, and lightweight solution for maintaining a lateral sleeping posture, reducing the likelihood of airway obstruction and other complications associated with supine sleeping positions. In some embodiments, the user's back rests against the front surface (105) of the triangular prism (100). The geometric configuration of the prism, particularly the vertex formed between two adjacent planar surfaces, increases the amount of force required for the user to transition into a supine position. This configuration distributes resistance forces along both planar surfaces of the prism rather than concentrating pressure at a single point, thereby enhancing comfort while effectively deterring backward rolling. In some embodiments, the front surface area (105) of the triangular prism (100) functions as the base of the prism, such that the user's back rests against this front surface during use. In this configuration, the opposing triangular faces and adjoining side surfaces cooperate to provide structural stability and distribute pressure across the user's back while maintaining the positional orientation of the pillow.

Alternative Embodiments and Variations

In some embodiments, the positional support pillow (500) may include additional or modified features to enhance comfort, stability, or usability.

In some embodiments, the pillow further includes a bottom-mid left attachment portion (205) and a bottom-mid right attachment portion (206) positioned between the top surface area (101) and the bottom surface area (104) of the triangular prism (100), but located closer to the bottom surface area to help provide enhanced stability and maintaining alignment of the pillow against the user's back during use.

In some embodiments, the straps (300) may be arranged in various configurations to accommodate different user preferences and body types. For example, the straps may extend diagonally between a top-left attachment portion (201) and a bottom-right attachment portion (208), or between other opposing or corresponding attachment points such as mid-left to mid-right (203 to 204). The user may select and adjust any combination of strap arrangements to ensure a secure and comfortable fit of the positional support pillow (500) during use.

In some embodiments, the use of a triangular prism geometry (100) provides distinct biomechanical and pressure-distribution advantages. When the base surface (e.g., 105) of the triangular prism is positioned against the user's back, the broad planar contact area distributes normal forces over a larger surface region, thereby reducing localized pressure that could otherwise occur with cylindrical or convex supports. From a physics standpoint, spreading the user's body weight across two adjoining planar surfaces reduces the pressure per unit area (P=F/A), minimizing stress concentration at any single point along the spine or soft tissue. In addition, the angular vertex of the prism positioned opposite the user's back acts as a mechanical barrier that increases the torque required for the user to rotate into a supine position. As the user's center of mass shifts toward the vertex, the triangular cross-section produces a restoring moment that resists further rotation, thereby passively deterring unintentional back-rolling while maintaining comfort through distributed support.

In some embodiments, the strap (300) employs a hook-and-loop fastening system that allows the user to incrementally adjust the length and tension of the strap for a customized fit. The releasable engagement between the hook portion (301) and the loop portion (302) enables rapid tightening or loosening without the need for buckles or mechanical fasteners. This configuration allows the user to secure the positional pillow (500) comfortably around the torso while maintaining sufficient tension to prevent displacement during sleep. Additionally, the hook-and-loop system facilitates repeated adjustments over time without material fatigue, thereby providing a durable and user-friendly means of achieving consistent positional stability.

In some embodiments, the use of a hook-and-loop fastening system provides a low-profile attachment mechanism that maintains a substantially flat surface along the strap (300) interface. Unlike tied or knotted fastening methods, which create localized bulk and uneven pressure points, the hook-and-loop engagement lies flush against the user's body or the surface of the pillow (500). This configuration improves comfort by eliminating protrusions that could cause irritation during prolonged contact and also conserves space, allowing the positional support pillow to rest smoothly against the user's back and the sleeping surface without distortion or bunching of material.

In some embodiments, at least one external surface of the pillow (500) incorporates a cooling gel fabric or gel-infused material designed to regulate thermal conditions during sleep. The cooling gel fabric functions as a passive heat sink, absorbing excess body heat from the user's back through conductive and convective transfer mechanisms. This helps maintain a lower skin-surface temperature, reducing perspiration and minimizing discomfort associated with heat buildup. By promoting thermal equilibrium between the user and the surrounding environment, the cooling gel fabric assists in preventing excessive sweating and skin irritation that can occur with prolonged contact against conventional foam materials. Furthermore, maintaining a cooler microclimate between the pillow (500) and the user enhances sleep quality by reducing thermal-induced restlessness and maintaining consistent comfort throughout the night.

In some embodiments, the adjustable positional pillow body (100) may be formed in alternative geometries, such as cylindrical, trapezoidal, square, rectangular, or other polygonal or curved shapes. These alternative configurations may be selected based on user preference, manufacturing considerations, or specific ergonomic requirements, while still providing the functional benefit of supporting the user's back and increasing the force required to roll into a supine position during sleep.

In some embodiments, the straps (300) are directly coupled to the attachment portions (201-208, 211, 212) by permanent or semi-permanent means such as stitching, sewing, adhesive bonding, or mechanical fastening. In other embodiments, the straps may be removably secured by tying, knotting, or looping through the attachment portions (201-208, 211, 212), allowing for replacement or adjustment as desired.

In some embodiments, the positional pillow body is cushioned using materials such as memory foam, down feathers, synthetic fiberfill, latex foam, gel-infused foam, or other resilient padding materials. These cushioning materials provide varying degrees of softness, contouring, and pressure relief, allowing the positional support pillow (500) to conform comfortably to the user's back while maintaining sufficient structural integrity to resist collapse and support lateral positioning during sleep.

In some embodiments, the positional pillow (500) comprises a prism-shaped body having opposing triangular faces, each triangular face being defined by three sides that may form an equilateral, isosceles, right, scalene, or other polygonal configuration. Such variations in triangular geometry may be selected to modify the angle of inclination, load distribution, or stability characteristics of the pillow (500) to accommodate different user preferences or ergonomic requirements.

In some embodiments, the triangular-prism (100) configuration of the positional support pillow (500) provides both restraint and controlled mobility for the user.

When positioned against the user's back, the sloped geometry of the prism increases the amount of force required for the user to roll into a supine position, thereby maintaining lateral orientation during sleep. At the same time, the angled surfaces of the prism allow limited, gradual movement along the slopes, enabling the user to adjust position or posture comfortably when necessary. In contrast, a square or rectangular support structure would create abrupt resistance similar to contacting a rigid wall, resulting in discomfort and restricted motion. The triangular configuration thus offers an optimal balance between resistance and flexibility—reducing back pressure while preserving the user's ability to move naturally during sleep.

In some embodiments, the sloped geometry of the triangular prism, particularly at the vertex angle opposite the user's back, allows another individual to lie behind the user and comfortably position an arm around the user during sleep. The angled surface of the prism provides a gradual contour rather than an abrupt barrier, permitting partial contact and natural arm placement without causing pressure discomfort or disrupting the user's supported lateral posture.

In some embodiments, a single strap may be configured to connect two or more attachment portions, allowing a continuous or shared strap to extend between multiple connection points. This arrangement can enhance stability, reduce the number of separate straps required, and simplify adjustment while maintaining secure attachment of the pillow to the user.

In some embodiments the mid left attachment portion, bottom mid left attachment portion, and top horizontal left attachment portion (203, 205, 211) may be located on the triangular prism left surface area (103), or the triangular prism front surface area (105). In some embodiments the mid right attachment portion, bottom mid right attachment portion, top horizontal right attachment portion (204, 206, 212) may be located on the triangular prism right surface area (102) or the triangular prism front surface area (105). In some embodiments the top left attachment portion and top right attachment portion (201, 202), may be located on the triangular prism front surface area (105) or the triangular prism top surface area (101). In some embodiments the bottom left attachment portion and bottom right attachment portion (207, 208), may be located on the triangular prism front surface area (105) or the triangular prism bottom surface area (104).

In some embodiments attachment portions (e.g., 201-208, 211, 212) may be disposed at any location on any external surface of the prism-shaped body, including without limitation the top, bottom, left, right, front, and any edge or corner region.