Let me start by saying..I love the bed!
It met all my expectations. I got the bed delivered on time as promised. Took it out the box, and it immediately started to expand, it did have a slight smell but only lasted 2 days and the smell was bearable nothing crazy that you can't put up with. It expanded, I would say to take it's full shape, like 2 days at the most. My mom also has a tempurpedic bed in which I have slept multiple times in, and it meets it's standards to it. I love it. Withing just that week, my back started to feel better; my last mattress was terrible. It formfits to your body shape and doesn't feel pressure when laying down. It does retain body heat. I took my dogs to the bathroom, and went myself and when I got back, my body heat was still there. The only thing I can say I noticed is that when the weather temperature drops and the house gets cold, the mattress does stiff up a little and gets real hard and firm. But, that's what space heaters, and heat is for. Overall, I'm very pleased.