Ergonomic design for bed backrest provides positioning support for the back, neck and lumbar when reading or watching TV. It helps relieve back pain by maintaining the correct posture while you relax. It can also function as a leg elevation cushion to relieve veins and muscular calf pain, varicose veins and swollen legs. Skin friendly and soft materials: the cover is waterproof cotton and linen, smooth, soft and breathable, delicate to the touch and wear resistant. It is filled with elastic pure cotton with good resilience and softness, keeping its shape for a long time without caking or falling apart. Durable and universal for all seasons. Decorative cushion: button design enhances the three dimensional effect. The back cushion features a unique retro cover, adding decorative elements to any room. Widely used: available in multiple sizes, suitable for bed, bedside, sofa, bay window, tatami, children's playroom, office and any place you need to lean on. It also makes a thoughtful gift for family and friends. Use scenarios: In bed for reading or watching TV, with neck and lumbar support and legs elevated for improved circulation. On a sofa or near a bay window for relaxed lounging, optionally elevating the legs. In a child's playroom or home office as a supportive cushion to lean on during activities.