Took my husband and I about 4 nights to adjust and get use to the mattress. I am a side sleeper and he is a back sleeper. I have much less aching in my hips compared to our last mattress. My husband isn't complaining about his back aching. Don't know how Sealy did it, but they took care of us both. My only issue is not with the mattress, but with the mattress cover. It is supposed to cover the entire mattress. I sure don't know how I'm going to get it over the entire mattress! Not sure why anyone would want a full cover. A real pain to put on and take off for cleaning. My husband is physically not able to help, so if I decide to use it, I will need to recruit a body or two.