If you like a cool bed when you sleep, you can transform your mattress using this waterproof ultra cooling mattress protector! Featuring 100% waterproof protection and gripping bedskirt to ensure the protector stays in place throught the night. Features: Twin XL cooling matress protector Stretch to fit bedskirt with elastic band keeps protector secure to your mattress Ultra cooling technology 100% waterproof Machine washable Dimensions: 1"H x 39"W x 80"L Material(s): polyester blend