Back support you can feel: This large bolster wedge pillow is ergonomically designed to follow the natural curve of your back and lift the upper body, reducing stress on the back and shoulders while you read or rest. materials: The triangular bedside cushion is made from cotton linen and corduroy for a soft, skinfriendly, breathable surface. The PP cotton filling provides lasting elasticity and comfort for long use. Thoughtful design details: The bottom is wider for stability. A side pocket holds items such as mobile phones or remotes. The wedge pillow features a convenient zipper and detachable buttons, and the pillowcase is attached with buttons and easy to remove with a zipper. Easy to clean: The back support pillow is completely removable and machine washable for simple care. Versatile usage: Ideal as a large backrest on a sofa made of pallets or as a backrest on a garden or indoor sofa bed. Also suitable for use on beds and standard sofas. Use scenarios: Read or watch TV in bed with supported upper body. Lounge comfortably on a sofa for extended periods. Use as a backrest on garden or patio sofa beds for outdoor seating.