Our Slumberland Fully Fitted Mattress Protector is Dacron filled and will help create a healthy and hygienic sleeping environment. The outer layer is made with 100% cotton with a generous and sumptuous layer of pure cotton filling that will greatly enhance the comfort of your mattress. With an elastic skirt, the protector will easily fit any mattress. The mattress protector is available in Single, Princess, Queen and King sizes. Get ready to snuggle into bed.