I've had scoliosis and chronic back pain for years, and no mattress so far would give me the support I needed. I've tried sleeping on a wooden plank, on the floor, but those were only short term solutions.Since I got this mattress (extra firm - very hard surface), my pain has gone away almost completely, and I feel like a million bucks every morning. Excellent support, I'm really surprised by how good it is. Compared to most specialised mattress I've seen online running at over 1k or more, the value for money on this mattress is excellent.