This bed wedge pillow is specially designed to solve mattress gap issues and provide multi-position support. The queen size fits most headboard scenarios. Made of high-quality memory foam, it precisely conforms to the curves of the neck, waist, back, and legs to relieve soreness and discomfort, offering extra comfort for bedtime reading or daily rest. It comes with a practical storage pocket for small items like glasses and mobile phones. With an adjustable range of 0-8 inches, it easily fills the gap between the mattress and headboard/bed frame to prevent pillows from slipping. The outer layer has a removable washable cover for easy cleaning, ensuring hygienic use. 0-8" Gap Filling - Flexibly fills the 0-8" gap between mattress and headboard/bed frame to prevent items from falling and pillows from shifting Memory Foam Support - High-quality memory foam fits neck/waist/back/leg curves for comfortable support and muscle fatigue relief Built-in Storage Pocket - Side pocket for easy storage and access to small items like phones and glasses Washable Cover - Removable outer cover, wear-resistant and easy to clean, keeping the product fresh Queen Size Fit - Queen size design, perfectly matching most queen bed headboards for daily use