HomeCrate Natural Sleep Defence - Heavy Duty Deluxe Waterproof/Bed Bug Proof Vinyl 78" 80" King, Mattress Encasement Vinyl QUALITY PROTECTIVE BEDDING; 100% Waterproof Barrier on all 6 sides of mattress. Independently lab-tested to be 100% Bed Bug Proof. Welded seams & zippers prevents tears and rips, MATTRESS ENCASEMENT FIBER CONTENT; 100% Tear Free Vinyl fabric is cool and comfortable, Breathable waterproof membrane won't trap heat while you sleep, EASIEST MATTRESS PAD; 3 Sided zippered mattress cover easily fits mattresses 9" deep. And can be easily wiped clean and wont stain, ALLERGEN PROTECTION; Help ease Asthma and other Respiratory conditions by blocking allergens as you sleep, it protects against Dust Mites, Perspiration, Urine & other fluids too. WARRANTY; 10 Year Limited Manufacturers Warranty.