The sareer memory foam gel foam matrah mattress made by the nbf approved sareer team features a 125cm layer of memory foam and a 25cm layer of gel foam the foam layers combined with a luxurious quilted cover mould to your bodys natural sleeping position and also regulates temperature and humidity maintaining a pleasant sleeping environment throughout the nightdimensionssmall single w 75xm x l 190cmsingle w 90cm x l 190cmsmall double w 120cm x l 190cmdouble w 135cm x l 190cmkingsize