The Sealy Luxury Cotton Mattress Pad is a harmonious fusion of comfort and practicality.The 100% cotton 300 thread count top layer gives the mattress pad an elegantly soft feel. The pad is stuffed with hypoallergenic Eternaloft fiberfill, which provides an added plush layer to your mattress for a better night's sleep. The PerfectGrip skirt effortlessly stretches to accommodate twin and full size mattresses up to 14 inches deep and queen and king size mattresses up to 18 inches deep for a snug and secure fit. This mattress pad is machine washable for easy care and backed by Sealy's 10-yearwarranty.