Milliard Full Mattress Encasement, Protects From Dust Mites and Bed Bugs, Hypoallergenic and Waterproof (Full 54"x75"x9") cotton-blend Use as a bed bug mattress cover, also protects from dust mites and other allergens No need to buy a waterproof mattress cover, this encasement is 100% waterproof Extra soft 80% cotton on top of regular waterproof mattress protector lining Quick and easy to put on with 3 sided zipper Machine Washable, Tumble Dry Low Heat