AllerEase Ultra Soft delivers the clean, healthy night's sleep that we all deserve. Featuring premium materials and an expertly-designed construction, Ultra Soft prevents 99.9% of unhealthy household allergens -- like dust mites, pollen, and pet dander -- from collecting in your mattress. With a soft waterproof layer to protect from spills and stains, Ultra Soft also includes specialized seams and zippers making it impenetrable to bed bugs. Together with a terry cloth top fabric to keep you cool and dry, machine washability, and a lifetime warranty, Maximum offers unmatched comfort, quality, convenience, and value for you and your family.