Enjoy a more comfortable nights sleep with the active shire dual season orthopaedic mattress this innovative double sided mattress has two layers of memory foam on either side and a sturdy sprung unit for additional supportdimensionsbull small single w 75cm x l 191cm bull single w 90cm x l 191cm bull small double w 120cm x l 191cm bull double w 135cm x l 191cm bull kingsize w 160cm x l 198cm bull superking w 180cm x l 198cm bull mattress height 23cm