AllergyCare cotton mattress covers and encasing are woven entirely of chemical free, naturally soft 100% cotton that is breathable,hypoallergenic and prevents dust mites, pet dander, and other allergens from getting into your bed while providing a cool and comfortable sleeping experience. It's scientifically engineered anti-allergen weave makes it an effective allergen barrier that can be added to your master bed setup, guest bedroom, or child's crib.AllergyCare cotton mattress covers offer protection, comfort, and cooling for a restful sleep. Whether you have an allergy or a guest who is sensitive to allergens, this mattress cover can provide the protection you need without sacrificing comfort or softness. With a 4.91 mean pore size, this mattress cover blocks unwanted allergens. It features a luxurious 280 thread count per square inch, so you'll feel like you're in a 5-star hotel every time you climb into bed. With heavy-gauge nylon zippers and rustproof metal zipper pulls, this lightweight mattress cover provides 6-sided, 360 coverage so your mattress is fully encased. It's easy to put onto your bed or remove for cleaning. The cover is machine washable which makes it easy to clean and care for. AllergyCare mattress covers provide high-quality hypoallergenic protection for your beds and mattresses, giving you clean, worry-free, and unbelievably comfortable sleep every night.