We have a $5000 Sleep Comfort bed in our home. I bought this mattress for our second home. I expected the mattress to be functional, but not rival our Sleep Comfort. Well, truth is, it doesn't rival our Sleep Comfort - it beats it - hands down. I wake most morning stiff. I need to warm up before my back starts to relax and the muscle discomfort goes away. I also wake several times each night. I have no back pain or stiffness when I wake up, now. In fact, my spine moves, I have no pain and I don't have that slow morning feeling. It is great to wake up with a flexible spine and neck! I love this mattress!!