Designed to be the most effective, comfortable, and quiet waterproof protection for your mattress. This Registry® deluxe pad with 4-layer construction has a cool and durable poly/cotton top, with the added comfort of an inner layer that is a could soft 4.5 oz bonded polyester fill for a thicker and more luxurious feel. The waterproof barrier layer is a 1 mil. polyurethane that has the unique ability to be water vapor transmissive, breathable, yet waterproof. The back and skirt are stretch polyester knit for a tighter, neater, and better fit on the mattress. These features will enhance guests sleeping experience and provide you with the confidence that your mattress is protected. So comfortable you won’t believe it’s waterproof. Machine wash/dry. Fits mattresses up to 16" deep. Twin, 39" x 75"