Original Bed Bug Blocker Zippered Mattress Protector: * Complete mattress encasement * 3-layer microporous barrier to protect against bed bugs and other allergens including dust mites * Recommended by doctors, allergists and entomologists * Fits mattresses and boxsprings up to 17" deep * Bed bug blocker, allergen barrier and dust mite blocker * Stain-resistant * Waterproof * Care: machine wash