Would your mattress benefit from an extra padded layer of comfort? Instead of replacing your mattress extend it’s life with this mattress topper. Add an extra layer of comfort to your mattress with this 38m deep mattress topper whilst protecting it from wear and tear. . The outer cover is 50% Cotton 50% Polyester. This is filled with a high quality premium bounceback hollowfibre for maximum comfort. It is held in place by elasticated corner straps and is fully machine washable.