My husband, who has a bad back,is now a happy camper! We have an old matress that my husband finds way to hard. He is always cold in bed, I am always too warm. After looking at different options, reading reviews, I opted for this mattress. His back doesn't hurt as much in the morning and he is warm and comfortable, and I am not too warm. This saved us from getting a new mattress! It had a smell when I first opened it up, but it was gone by the next day. LOVE THIS!!!