I'm not sure if I would consider them an air mattress, but this is probably the best option durability-wise. When I was growing up my family had some that lasted 10+ years (but not of daily use!). I think they were Thermos brand but I'm not sure. The especially nice thing about them is that if they do spring a leak, you take them to your bathtub and stick them underwater until you find the leak, then patch it up.