I sadly hadn’t replaced my mattress in the allotted time frame. I was leary about buying one of the mattresses in a box but I can’t believe how comfortable this mattress is. No smell at all upon opening. I just wish I had bought the next size up as it did t get to the full 8” it was supposed to but with my box spring it is fine. I’m very happy with this new mattress. Best sleep in a very LONG time. No pain in my back in the morning.