Sooooo disappointed!!!! Mattress took 48h to open up. But no more than 9inches. And HARD AS HELL! It is better to sleep on the floor. We had a medium soft before that we hated, wanted the firmness and the memory foam for my back pain. My husband has never had back pain before and since this bed it is a nightmare, prefers to sleep in our kids beds that are too small but so comfy. I am guessing it is because of the missing inch that it is missing the softness of the memory foam. Because it take the shape of our body slightly, but takes time to get his normal shape again. My parents convinced me to buy it, because they bought 2 wayfair mattress exactly the same, and they are awesome. Theirs were not existent any more but these once are the replacement same exact mattresses but under another title. But way different in texture. I guess it is bad luck but I had to buy a 2inch memory foam to get some comfort.