Size and compatibility Seven size options to fit a range of mattress widths, including Twin, Full, Queen, and California King environments. The large triangular wedge aligns with the width of the mattress, and it can be used as a headboard or as sofa cushions when needed. Design and support Triangular wedge shape delivers stable, elevated support for the upper body, helping to promote comfortable posture during rest, reading, or screen time. Acts as a stylish accent for bedrooms or living rooms while providing practical back support. Materials and construction The headboard wedge pillow uses a smooth, soft, breathable cover that resists wear. The inner fill is PP cotton, offering good rebound, softness, and durability, with less likelihood of deformation over time than memory foam. Removable cover and practical details The pillow cover features a tufted button design and is removable for easy cleaning. Includes a side pocket for convenient storage of small items you need close at hand. Built for longterm use and consistent comfort, suitable for placement at the head of the bed, on a sofa, or wherever you rest. Use scenarios In bed: use as a backrest for reading or watching TV, helping to maintain a comfortable, elevated posture. On the sofa: convert a sofa area into a supportive lounging space, providing upperbody elevation during breaks or relaxation. Decoration and practicality: place at the head of the bed or sofa as a decorative, functional accent; keep keys, remote, or small items in the side pocket for quick access.