We tested several air mattresses with this feature but if adjustable firmness is a priority for you, we recommend the Skyrise Raised Express Air Mattress from Beautyrest. In our lab testing, this mattress was very comfortable, felt similar to a standard mattress, and provided sufficient back support. Not surprisingly, it earns high marks for both… Continue reading Bestway Tritech 18″ Twin Air Mattress with Built-in AC Pump 20518936