The Sealy Luxury Knit Fitted Mattress protector is a great addition to your bedding. This protector is made with a luxurious soft knit fabric, which adds cool, breathable comfort to your mattress. The waterproof backing and stain release finish prevent spills and stains from getting to your mattress to help extend the life of your mattress. The fitted sidewalls stretch to fit any mattress up to 15" deep. This product is machine washable and dryable for easy care and continued use.