This Thomasville? Lumbar Lift 12? air mattress reduces back pain with cross-section lumbar reinforcement. Tall oval beams keep your back from dipping and promote spinal alignment. Made of puncture-resistant vinyl that is leak tested to guarantee quality, is backed by a 1-year warranty, and supports up to 700 lbs. Soft, flocked top holds sheets in place. You can make quick adjustments from firm to plush with the one-touch control. Hands-free pump locks in place and fully inflates or deflates in under 2 minutes. Fits back easily in the carry bag for compact storage.