Ergonomic lumbar support for ultimate comfort This triangular backrest cushion is designed for lumbar support, helping relieve back pressure when sitting up in bed, on the couch, sofa, daybed, or dorm. It is ideal for reading, watching TV, or lounging, and it supports posture and relaxation. density pearl cotton filling Stuffed with density pearl cotton, this large wedge pillow maintains its shape while providing soft yet firm support. Whether you lean back or rest against it for hours, it quickly rebounds for continuous comfort. Removable and washable cover for easy maintenance The cover features a convenient zipper for easy removal and machine washing. Clean and refresh your bedroom, sofa, or tatami space with minimal effort. Side pockets for handy storage Builtin side pockets let you store your phone, remote control, glasses, or books within reach, helping you stay organized while you relax. Size and use scenarios Large wedge pillow suitable for use on beds, couches, daybeds, and in dorm rooms. Use scenarios: Reading in bed or lounging on the couch. Watching TV or streaming for extended periods. Relaxing in a dorm room or on a daybed during downtime.