After extensive research The Sleeping Zone Mattress Company have developed a new range of memory foam mattresses which are the ultimate in sleep quality & comfort. The 3 zone support system of the Tri-Zone mattress has been specifically designed to respond to weight & body temperature to create a comfortable & supportive sleep. The mattress zones & the unique Air Flow® channels in the foundation of the mattress allow air to circulate freely providing excellent sleeping conditions for a healthy nights sleep. The 3 zoned mattress features 7cm of memory foam & 15cm of Reflex foam with a high quality deep quilted knitted cover.