I thought I had a good mattress when I had the King Koil. It started wearing in the middle. It was a good mattress and I'd recommend that too. I went to get a new one. I told the guy I was having some back problems and needed a firm mattress. He took me over to this Therapedic back sense mattress. I laid on it and could feel the pain in my back easing up. I never looked at another mattress. I was sold. I love my mattress still today. My sister has degenerative disc disease. Slept on my mattress and loved it. She said it was the 1st good nights sleep she had in many years. She wanted to take my mattress home with her. Of all the mattresses I tried I'm sold on the Therapedic Duches Backsence Mattress! I had my other sister over to stay a couple weeks. She slept on my mattress and also loved it. A few years back she was in a car accident and broke her back. She had to wear the metal cage as we call it for quite some time. My sisters been over before and complained about the King Koil mattress. After sleeping on my duchess back sence mattress, she told me I did Good. I would recommend this to any one, especially if you have any kind of back problems. It is really just the perfect mattress. It's not hot like I've heard some people say. You wake up and know you got a good nights sleep. I've slept more since I got this mattress than i have in years.
Last edited on Aug 27, 2009