AllerEase Organic Cotton Cover Allergy Protection Mattress Pad, Queen Cotton 100% Breathable organic cotton cover provides natural allergy protection Quilted diamond pattern is attractive and ensures fiber fill does not shift with repeated washings or movement Allergy defense fabric blocks dust mite matter and other nonliving allergens from collecting in the mattress pad - these allergens can trigger asthma and allergy symptoms Mattress pad stretches to fit mattresses up to 18" deep Recycled hypoallergenic polyester fiber fill provides comfort and support while reducing the risk of an allergic response