Slip The Dr. Weil Signature Mattress Protector by PureCare over your mattress for a simple, breathable solution to cleaner sleep. This protector offers a sensible barrier from moisture, common allergens, and irritants and is fully washable to ease your stress on laundry day. A woven cotton and wool blend creates a cozy fabric so soft you'll forget it's there. Precision-Fit® corners and a 1" thick elastic cuff keep it securely in place on standard and adjustable base mattresses for consistent comfort.