This is a full size mattress purchased on Amazon new for $2,300 and used for only 3 months. It is in excellent condition. I wish I knew about this air mattress because it is a must for anyone spending a long time in bed where it is inevitable for patients to develop pressure sores. This bariatric system provides alternating pressure to optimize pressure redistribution for patients with up to Stage IV pressure ulcers. I wish I knew about this air mattress for the whole duration I was taking care of my mom, it is the best.