We bought two of these for our camping trip this year- one for us parents and one for the girls. We were so surprised at how quickly they filled up-like maybe 3 minutes. It's so nice to have them power deflate also. Over three nights, I only topped up our mattress once(being slept on by two adults). I picked these mainly because they are PVC free and feel really good about that. No creepy smells. The girls slept on one for the rest of the week- no complaints. Love Kelty quality.