Ok. Don't know about all the reviews seen here but what i among writing is my own honest review. I bought this mattress as my sealy mattress of 6 years was starting to get soft. My wife was complaining that her back was hurting and i noticed that my lower back required some stretching in the morning when i wake up. My back however wasn't hurting like how hers was My wife suggested a harder mattress. Looking at the reviews for noa, it mentions that the mattress is pretty hard. (...) My conclusion for noa mattress is that it is perfectly suited for back sleepers. Side sleepers, you will take some adjusting before it starts working for you. I would not recommend buying noa if both husband and wife are side sleepers. However, if just one is a back sleeper, buy it for that person. The side sleeper will adjust and start to love it too after awhile.