Creating a healthy, allergy-free sleep environment with allergist-recommended waterproof allergen barrier. Protect your family from common allergic reactions to dust particles and dust mites. Prevents the entry and escape of bed bugs. Safeguard your bed with this ultra-comforting mattress cover. Mattress protector case crafted with care, made from 100% cotton terry fabric, enhanced with a urethane laminate membrane for unparalleled safeguarding.