Popular Home Collection 4-in-1 Mattress Saver with Hypoallergenic Bed Bug Blocker, Twin, White 100% Cotton Made in US Features - keeps mattress fresh and clean; zippered cover surrounding entire mattress Deep pocket construction fits up to 15" deep Dimensions: twin 39 x 76 x 15", full 54 x 76 x 15", queen 60 x 80 x 15", king 78 x 80 x 15"; soft and durable white non woven fabric layer 3 layer protection against bed bugs, dust mites and other allergens; protects against bacteria, protects against bed bugs, plastic rust proof zipper This zippered mattress cover is water resistant and not waterproof. If water is left on the surface it will eventually seep inside the cover