The Vevor bed wedge pillow is designed to fill 0-7" gaps between the mattress and headboard to help keep pillows, remotes, and other items from slipping through. Its 25D high-density foam provides soft, resilient support for the head, neck, and back. The reversible triangular design allows it to function as a gap filler, backrest, or support pillow in different settings. A breathable air-layer fabric cover with a bottom zipper makes removal and cleaning easy. The non-slip bottom helps keep the wedge securely in place during use.