What I found great about this system is that if it doesn't work you send it back. From my own point of view prior to having the mattress I was in agony on my own bed. Even at my son's house I had to resort to sleeping on the floor. My first night with the new mattress was the first nights sleep I had had for a long while. I did have to experiment with the inserts to adjust to my preference but found the company most helpful in coming up with the right combination. My bad back got slowly better but it did take many months but getting a good night's sleep was a breakthrough. It's nice to have my back virtually back to normal without having to go through surgery. As an aside my wife is pleased with it as well because our previous memory foam mattress always retained the heat and became to warm to sleep on. Also she has a different combination of inserts to suit her sleeping style.