Bought another mattress under a partial return due to sleep issues. Invoice does not say what I ended up buying, just a number. Did not find out what I purchased until delivery. I was looking at Tempur-Pedic and ended up with a Serta, nowhere near the same. This Serta is listed as medium but it is as hard as my floor. Could not even sleep on it at all. Poke it with your finger, feels soft but try laying on it, totally different feel. Over $2250.00 for a useless item. Salesman was in a hurry to get me out of the store and not deal with me. Showed me 2 mattresses and wrote it up. I would take my old mattress back, at least I could get 2-3 hours sleep even with back pain after. Trying to contact them about this but doubtful.