I was afraid of the mattress, it came in a box rolled up very tight, I was careful in cutting the plastic but finally when it expanded, WOW, amazing feel, it contours to your body and if you move it pops up and contours to your body again, still getting used to this feel, but I think I am going to love it. Just need to get cozy and maybe change my pillow to the same kind of bed material. I really enjoy sleeping in this new mattresses and I am very happy to buy it. I would personally recommend to buy it if your having back pain.