The mattress of this product is a high-end care medical grade double bedsore mattress, the whole is surrounded by nylon PU bed bottom, and the washed bed cover is PU stretch cloth. Effectively waterproof, anti-corrosion, anti-mold, with fireproof coating; The upper layer is a wave alternating air bag tube strip to provide the user with turning assistance. The lower layer is a thickened bedsore medical grade sponge to help patients provide a better comfortable experience for users;