quality materials and comfort The back cushion uses a soft, breathable cotton and linen cover with a wearresistant finish for everyday use. The filling is PP cotton with strong elasticity, helping the pillow contour to the natural curve of your back and provide comfortable, allround support. Ergonomic design for better alignment The wedge headboard cushion is shaped to match the natural curvature of the back, providing ergonomic support. The pillow angle can be adjusted for reading or device use in bed, and a builtin pocket stores small items such as a phone or remote control. Versatile use across settings Large bed wedge pillow suitable as a headboard wedge, backrest, leg raiser, or knee pillow. Also handy as a couch pillow or extra support when reading, watching TV, or working on a laptop in bed. Designed to maximize comfort whether you are sitting up, lounging, or converting a bed space into a work or entertainment area. Easy care and maintenance The triangular back support cushion cover is removable and washable. Open the zipper to detach the cover from the wedge pillow for easy cleaning and to maintain a clean environment. Practical use scenarios In bed: use for reading or browsing a phone or tablet, with the pocket keeping your remote or small devices within reach. On a sofa or chair: extra back support for lounging, watching TV, or working on a laptop. Elevating legs or supporting the knees: use the wedge shape to improve circulation or relieve pressure during extended rest.