L'COZEE Quilted Fitted Mattress Pad (King) Hypoallergenic, Mattress Topper, Stretches up to 18 Inches Deep, by Assure Sleep Collection Polyester King Size Quilted mattress pad cover is durable, long lasting and is significant as it keeps your mattress free of stains, hypoallergenic and prevent exposure to dust mites and other potential allergens King size dimensions measure 78 inches by 80 inches; knitted skirt stretches to fit up to 18 inch deep mattress The super soft cotton quilt has additional loft that will enhance the quality of your sleep and protection The elastic knitted skirt all around secures pad into position The Mattress Pad cover is machine washable and is tumbled dry for easy maintenance