Size and design The large triangular wedge pillow aligns with the width of the mattress and can be used as a headboard. The backrest ships compressed in a vacuum bag; to restore fullness, remove the bag, shake vigorously for 5 minutes, and allow 48 hours for the pillow to regain its original fluffy form. Soft material and cover Made of polyester fabric, the cover is breathable with a delicate touch and wear resistance. It is filled with soft 15D polyester fiberfill, providing good density and resilience. To remove the pillow cover, unzip the pillow, take off the cover, and unravel the buttons. Ergonomic triangle shape The wedge pillow is designed to support the natural curvature of the back and provide elevation for the upper body. It can reduce back and shoulder stress and provides proper support while you are reading or resting. Multipurpose use Provides maximum back support for upright activities such as working on a laptop, watching TV, playing games, or reading in bed. You can also lay down on the wedge at a different angle to read a book or use your cell phone. Use scenarios 1) Reading in bed or working on a laptop with the upper body elevated for comfortable posture. 2) Watching TV or playing games in bed while maintaining back support. 3) Browsing a phone or resting at a relaxed angle by lying on the wedge and adjusting position.