SnugFleece Deluxe Wool Mattress Cover - Crib Cotton 1" Pile / 40 oz. Wool per Square Yard / Machine Washable Warm in Winter/Cool in Summer/Non-Allergenic Natural comfort and pain relief - conforms to the contours of your body to ease pressure points 30-Day Sleep Guarantee - Return if not Satisfied Fits any mattress up to 18" deep