It is brand new. The box has been opened, but it has never been used. The cover is 100% polyester. The cover is machine washable. The upper layer features a 1.5" plush memory foam for a comfortable night's sleep. The wedge core supports the memory foam top to ensure firmness and proper support. It is ideal for GERD, heartburn, acid reflux and other medical conditions. It is ideal for head, foot or leg elevation.