We didn’t expect that the mattress will be that hard. First night I can say was a nightmare to survive until morning, all back was in extreme pain, I was rolling side to side, we didn’t sleep well. The night later was not bad. We get use to already and if fine, but still thinking to get less hard! For people who really love hard matters I will recommend but who don’t I don’t . Matters also stink a lot with glue, we hope the smell it will disappear with time.