This wedge pillow can firmly support your back and provide a comfortable sitting-up position while you're reading or watching TV in bed. The distinguished triangle shape with tufted buttons forms a unique décor on your bed and adds a fresh view to your bedroom. It has all standard sizes twin 39" with 3 buttons, full 54" with 4 buttons, queen 59" with 5 buttons, California king 71" with 6 buttons, and king 76" with 7 buttons to fit across any standard bed as a comfy headboard against the wall or convert a daybed to a sofa. Each pillow has the same height 20" and same depth 8".