Keeping your child's Mattress is simple with this high quality Silentnight Waterproof Mattress Protector which also helps to promote a more comfortable night's sleep. Our high-quality Silentnight Waterproof Mattress Protector is perfect for protecting and lengthening the life of your Mattress. PU laminated terry fabric, 80%cotton 20%polyester laminated with polyurethane film. Soft, stretchy and comfortable and stitched around the border with 1/2" white elastic for tucking into the mattress for stable grasp