Only slept on this for three nights so far but it is brilliant.  Our old traditional pocket sprung mattress (only about 5 years old) was giving me back trouble and I'd wake up all night feeling way too hot.  With the new Dormeo mattress I find I am not constantly turning over and trying to get comfortable and I haven't felt over-heated at all.  My husband is also happy with it and I find that there is hardly any mattress movement when he gets out of bed whereas with the old one I was jolted awake if he moved.  I also like that there are handles on this one so that makes it easy to turn when needed and it is lighter in weight so easier to make the bed etc.  I had been worried about trying a memory foam mattress but I am really glad I've got it now and especially as the price was very good with Wayfair.  Delivery was within the time frame and unlike the old type mattresses, it didn't need two strong people to lug it upstairs.  A great buy as far as I'm concerned.