Healthy Sleep Premium Mattress Encasement is lab-tested and proved to be Bed Bug proof. Once more it is allergen and dust-mite resistant and our patented design will keep your mattress clean and fresh longer. The waterproof fabric protects against accidents and keeps moisture from seeping into your mattress and causing additional damage. You’ll sleep better knowing your mattress investment is securely protected. Available in Twin, Full, Queen, King, Twin XL & Cal-King