We have had this mattress in our home for about a month at this point. I am a side / stomach sleeper and my spouse is a side / back sleeper. While we were aware that there would be some break-in period we were not aware it might be forever (or at least feel that long)! It is like sleeping on a commercial grade carpeted floor with hardwood underneath at this point - VERY HARD with just ever so little give. What we experienced in the showroom was firm, but contoured to our bodies and minimized feeling your partners movements. At this point neither of these are realized in our home. The cooling benefits of the bed are definitely present when you first climb in for the evening. However, they do not seem to persist throughout the entire nights rest. My spouse has always likened sleeping next to me like sleeping next to a furnace though so this might not be the fault of the mattress. Hoping that better days are coming we just have not seen them yet.