I undid the bed myself which if I ever did it again would wait for help, but I couldn't control myself. I wanted to see how it was possible that it could blow up 14 inches. Not only did it achieve it's goal rather quickly, I have to tell you that it is more comfortable than my Stearns and Foster that was significantly more. It is a firm mattress, but you sink in just enough to alleviate any pressure points that you would hit on a truly firm mattress. It is going in our guest room, but could easily be a primary mattress.