Enjoy a fresher, cleaner night's sleep with the Sealy Flex Charcoal-infused Fitted Mattress Protector. This mattress protector features a luxurious flex knit fabric infused with activated charcoal which aids in neutralizing odors and moisture-wicking benefits to keep you cool and dry. Our SilentGard® Waterproof protection stays soft and quiet while protecting your mattress from spills and stains. PerfectGrip® Sidewalls ensure a no-slip hold on mattresses up to 18 inches tall. Machine washable for easy care and backed by the Sealy Certified Lifetime Warranty.