This angle-adjustable backrest is designed to help improve your comfort in bed. It's a simple and effective device that provides excellent comfort. Use it when you want to sit up in bed. The backrest can be used by anyone who needs more support when relaxing in bed, but it's especially useful for people who spend a lot of time in bed due to illness or injury. Since the backrest folds down, it's perfect for taking with you when traveling or on vacation, and it's portable enough to easily fit in a suitcase or car trunk.