Double. 1350(W) x 1900(L)mm This quilted double topper protector features a soft polyester filling and highly durable polycotton cover, keeping your mattress free from spills and stains. The machine washable, channel-stitched topper also gives an extra level of softness to the mattress that your guests will love, helping them to drift off into a natural, healthy sleep. The white topper is easily secured to the mattress with elasticated bands, keeping it firmly in place.