Specification Whether you're looking for a traditional mattress or more contemporary style, there's a Slumberland mattress to suit almost every personal preference & pocket. Over 500 Postureflex springs Topped by a layer of visco-elastic foam to offer you sumptuous comfort & finest top quality support Foam encapsulation so you can enjoy the whole of your bed No turn mattress Tension Medium Size 5FT Kingsize (150 x 190cm)