This ergonomic wedge pillow for a king bed provides soft but firm inclined back support & promotes a comfortable sitting-up posture while you're reading or watching tv in bed. It can either fit across the bed as a comfy headboard against the wall or convert a daybed to a sofa. It is also a perfect elevation/comfort/relief cushion for neck shoulder pains, acid reflux, post-surgery, breathing issues, or blood circulation problems. The triangle shape with tufted buttons adds a unique décor to your bedroom. the pillow cover is removable and washable with convenient side pockets to store little whatnots.