If I just said it was a great mattress , I would say nothing . I have not slept like a baby for a long time . The mattress does not feel cool nor hot . It just keeps a perfect comfortable temperature through the night . Most nights I sleep on my left side because of an issue with my right shoulder . Since I got this incredible mattress , I have been sleeping on both sides so comfortable that I didn't wake up even once during the night like I used to do . It gives my body the right support and the right amount of cushion needed for my shoulder, neck and back. My husband is a side /back sleeper and he also got in love with our new mattress . The mattress fits perfectly in our queen size bed . The material is gorgeous and feels amazing . The queen size sheets work great to cover the mattress and the box that came with the mattress. By the way ,the box is also made from very high quality material and looks beautiful. It is really a very high quality gorgeous looking bed set ! It is definitely the best mattress we have ever had !