This soft, quiet mattress protector is made from quiet, ultra-thin material that is breathable and maintains a comfortable sleeping temperature. The LUCID Mattress Protector has a cozy terry fabric top surface that does not change the feel or sound of the mattress while providing excellent top-of-mattress protection against liquids, dust mites and allergens. A thin, quiet polyurethane membrane repels liquids and fluids to protect your mattress and your mattress warranty from stains. This liquid-proof barrier has tiny pores that allow air to pass for breathability and a comfortable sleep temperature. Because they survive on dead skin cells and bodily fluids, up to 2 million dust mites can live in your unprotected mattress. Exposure to dust mites has been linked to the development of asthma in young children. Additionally, dust mites have been shown to be a leading cause of allergies and eczema. LUCID mattress protectors cut off the food supply to dust mites, making it impossible for them to survive. Fitted sheet-style mattress protector has a fully elasticized skirt and deep pockets that keeps the protector tightly in place on mattresses depths up to 22 in. Easy to put on and take off for laundering, this protector works great on extra-thick memory foam and pillow top mattresses. Keep your mattress clean and fresh by washing your sleep surface. Machine-wash hot water. Tumble dry low. Do not bleach, iron or dry clean.