The sareer value pack memory foam matrah mattress consists of layers of reflex and memory foam and a memory cream fabric 2 way stretch cover this hypoallergenic mattress has a no roll together system and can be used on both sidesdimensionssmall single w 75xm x l 190cmsingle w 90cm x l 190cmsmall double w 120cm x l 190cmdouble w 135cm x l 190cmkingsize w 150cm x l 200cmsuperking w 180cm x l 200cmdepth 125cm