Utopia Bedding Zippered Mattress Encasement - Bed Bug Proof, Dust Mite Proof Mattress Cover - Waterproof Mattress Protector (King) Fits king size mattress perfectly with dimensions 78 inches by 80 inches; 15 inches deep pocket Zippered cover with a zip guard secures the mattress from 360 degrees and keep bedbugs from entering or escaping Stretchable knitted polyester fabric fits the mattress easily and gives a comfortable feel while you sleep PVC/vinyl free waterproof TPU backing on all sides resist any leakage into the mattress Machine washable; tumble dry for easy maintenance