After reading the reviews I started and I bought this mattress. My wife suffers greatly from the back due to a damaged disc and moved appreciates this mattress. We get up in the morning without pain. Happiness.
This mattress is very suitable on a hard mattress because it already well distributed body weight without making the softer mattress. When bad back that's great. As for me I put on a pretty firm spring mattress and give it the much more comfortable.
