I've been sleeping on this mattress for two nights and very happy with it so far. Only reason I give it 4 stars is because it's a little firm compared to what the description says, which is fine with me because I was looking for something on the firmer side. The top layer is soft and comfortable but overall not a true medium firmness. My back has also been hurting a lot less since I started sleeping on this mattress. Be warned that it's pretty heavy both in the box and after it has fully expanded.