Luxurious mattress covers offers ultimate comfort and protection for your mattress preventing bed bugs and dust mites from entering or leaving your mattress. Features : Laboratory tested and Certified Bed Bug & Dust Mite Proof. Stretchable to fit 9" depth bed up to a 15" depth to fit a pillow-top mattress.Waterproof material protects from all leaks and spills that may occur. (blood stains, urine stains, sweat stains)Machine Washable in temperatures below 140 degrees. Never use bleach.3 sided Interlocking zipper with a stitched velcro flap to ensure security.Plush fabric ensures the highest level of comfort.Note: Always wash in temperatures below 140 degrees. Never use bleach.