I'm a side sleeper. There are days when I wake up and my lower back is in pain. However I enjoy sleeping longer hours in a bed instead of a sleeper chair.
Love the mattress so far, easy to setup, good even weight distribution, doesn't get hot. I'll never go back to old springs, it was so easy to setup, when I need another mattress I'll go this route. I didn't rate a 10 because I need more time on it.