MALOUF Sleep TITE ENCASE LT Bed Bug Proof Waterproof Mattress Encasement Protector - Twin Complete mattress encasement that won't overheat or change the feel of the mattress Lightweight, quiet protection against bed bugs, liquids, allergens and dust mites Hypoallergenic cover with breathable waterproof membrane Zipper closure protector securely fits mattresses 6 to 14" thick Twin size mattress protector measures 39 by 75 inches; 15-year U.S. warranty