INNOVATIVE 3-LAYER DESIGN WITH 2 INDEPENDENT AIR CHAMBERS: Have you ever ever waken up in the course of the night as a result of a pinhole leak? Uninterested in back pain & discomfort as a result of rocks & bumps under your tent? Never sleep on a thin deflated mat again! Our sleeping mat ensures your excellent night’s sleep even supposing one chamber is punctured – the opposite one helps to keep you from sleeping on a cold hard ground. Being a camping luxury, the mat provides additional insulation, maximum comfort & ergonomic make stronger.