Size and design: The large triangular wedge pillow aligns with the width of the mattress and can serve as a headboard. Soft material and fill: The cover is made of polyester fabric, breathable with a delicate touch and wear resistance; filled with soft 15D polyester fiberfill with density and resilience. To remove the pillow cover, unzip the pillow, take off the cover, and unravel the buttons. Ergonomically designed triangle shape: This large bolster 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 provide proper support while reading and 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 the wedge pillow for a different angle and lie on it while reading a book or using your cell phone. Setup on arrival: The backrest is compressed; please remove the vacuum bag, shake vigorously for 5 minutes, and allow 48 hours for the pillow to restore its original fluffy.