Featuring 1800 my pro pocket springs the extra latex comfort 1800 mattress offers superior comfort and support whilst mymini springs shape to your body contours the mattress further features a top layer of myluxury responsive latex foam and myedge support which prevents roll off this is a no turn mattress which requires only periodic rotationthis mattress is nbf approved and comes with a 5 year guaranteeplease note spring count refers to a 5ft kingsize modeldimensionssingle w 92cm x l