The Slumberdown All Seasons mattress topper has a cool microfibre side that can be used on those warmer nights and a white plush fleece reverse for those colder winter nights. Its soft sumptous filling makes it super comfortable to sleep on and it protects your mattress from any unwanted spills. The easy-fit elasticated corner straps hold the topper firmly in place on the mattress no matter how much you wriggle around in bed. Suitable for kingsize beds. Cover made from 100% polyester. 100% polyester filling. Secured by elasticated corner straps. Cover is machine washable at 40C and suitable for tumble drying.