Mattress or Box Spring Protector Covers Bed Bug Proof/Water Proof Fits Mattress 10-13 Inch Twin Polyester Imported 100% waterproof bed bug protectors on all 6 sides of the mattress The bed bug protector covers have total mattress protection Mattress covers fit for mattress 12-13 Inch Mattress bed bug protector cover have breathable fabric that repel fluid while it allows air to pass through Mattress cover has soft micro-polyester fabric Bed Bug protector covers also protect against mites, dust & allergens Mattress bed bug protector is zippered for best protection