MALOUF SLEEP TITE FIVE-5IDED Hypoallergenic Mattress Protector With OMNIPHASE and TENCEL - 100% Waterproof - Regulates Temperature - 15-Year U.S. Warranty - Vinyl Free - King Cotton Most advanced mattress protector on the market - combines moisture-wicking Tencel fabric, temperature regulating Omniphase material, and the breathable SLEEP TITE H2PRO Membrane Five-sided coverage protects the top and sides of your mattress from liquids, allergy-causing dust mites, and bacteria 100% Waterproof - repels all liquids including bodily fluids, perspiration, urine and accidental spills; 15-year U.S. warranty Universally-sized, fully-elasticized fitted sheet style fits all mattress depths from 6 to 22 inches Made of ultra-thin, quiet material that helps prevent overheating, this King size mattress protector measures 78 inches by 80 inches