I bought this mattress for my mother, she's 90 years old and she has a curved spine and we could never fine a mattress that she could get a decent nights sleep on. She recently broke her hip and on top of the bad back this mattress is a Godsend. She is sleeping better than she has in years. Thank you, thank you thank you. I've finally gotten her out of the recliner and back into a bed. Five star rating. Buy one, you won't regret it [This review was collected as part of a promotion.]