Prolonging the life of your mattress this mattress protector keeps your mattress fresh and clean while offering extra comfort and support machine washable this mattress protector is highly convenient and easy to keep clean dimensions single 3ft w90cm x l190cm ndouble 4ft 6in w135cm x l190cm nking size 5ft w180cm x l200cm nsuper king 6ft w183cm x l200cmnfits mattress depths up to 28cm item details our comfortably cool protector has a 100 cotton cover and a dacron eco polyester