I was really impressed with this mattress , as I was skeptical of one that came in a box and needed to inflate. It was fully inflated within a few hours.  I have 4 herniated discs in my back, and so far have woke well rested. My back pain is minimal so far, but that could be the mattress is to firm for me, as I wasn't sure what firmness to buy. More time sleeping on it will tell, as it has only been a couple of days. I would buy again! 
It's been 3 weeks now. I can not believe what a difference in my pain that this mattress has made. I use to wake in as much pain as I went to bed with. I am totally impressed with this mattress!