I love my new Serra mattress. I tried it a couple of times before purchasing it by laying on it in the store, visiting it the days my back hurt the most. It was the only mattress that I laid on my back and my back quit hurting. I have had it appropriately 2 weeks and my back is feeling so much better and I have been sleeping so much better. The mattress seems firm but with the pillow top adds comfort. It was a great addition to my bedroom to sleep through the night.