I purchased this air bed during a work trip that was extended for personal travel. It afforded me excellent rest and remained in good quality throughout the duration of the trip. It retained the same level of firmness over 7-10 hours of sleeping on it at approx. 190 lbs. I am fully satisfied with this purchase.
I love this air bed. It was a cinch to get set up and it stayed firm all night. The lumbar support and firmness made a world of difference in how I feel in the morning. It's easy to break down and put away too (it comes with a convenient bag).