Safe, Comfortable Sleep: Enjoy a clean, comfortable bed with our breathable mattress encasement that protects against everyday elements. Stretchable Fabric Fit: Made from 100% polyester that stretches to fit pillow-top mattresses 9' to 15' deep for a secure, snug fit. Water-Resistant Protection: Shields mattresses from liquids, stains, sweat, odors, and other messes to keep your bed fresh longer. Bed Bug & Allergen Proof: Durable fabric traps bed bugs, dust mites, and other pests to prevent infestations and improve sleep quality. Easy to Clean & Install: Machine washable on a gentle cycle; features a 3-sided interlocking zipper for quick, hassle-free setup.