AllerZip Smooth Waterproof Bed Bug Proof Zippered Bedding Encasement, Full, (Fits 12 - 18 in. H) Waterproof: Polyurethane film backing repels liquids like urine & sweat on all six sides Breathable Barrier Fabric: Guaranteed NOT hot to sleep on. Allows body vapor to breathe through 3-sided zipper lock is certified barrier for bed bugs, dust mite & allergen. Easy to Wash & Use: Machine washable in warm or hot water. Tumble dry on medium heat. Fits Full size mattresses 54 x 75 inches, 12 to 18 inch height.