From the 1st night I slept on the mattress the pain from my 2 herniated disc was immensely reduced. This purchase was for a spare bedroom which I now prefer to sleep in.
No such thing as a perfect 10, maybe email back in 10 years and I can re-evaluate. Let's put it this was the first mattress purchase was awesome and the second mattress was also awesome...lets wait and see after 10 years of restful sleep would I change my mind.