Mattress: Get a memory sprung mattress. Tufted cool-touch: Made with a 100% polyester cover. Sizes: Option of small single, single, small double, double or king. Hypoallergenic filling: Helping you to get a comfortable and restful sleep. Total depth (approx.): 21cm. Medium firmness: Coil sprung with a memory foam layer. | Memory Sprung Mattress - Single | Wowcher