We just purchased our trailer a couple of months ago. It had an air mattress in the fold out bed with a battery operated pump. It was terrible and took forever to inflate/deflate. It also lost air and was uncomfortable. We bought a InnoMax ForeverAire mattress from Amazon based on its excellent reviews. It wasn't cheap but it has the pump built in with a silent low flow pump to maintain the pressure during the night. We've only had it for a short time so I can't speak to its longevity. But the folks that have slept on it raved about how comfortable it was. It came with a tote bag and we store it in the compartment under our main bed.