Black Pine Sports Big Johnson Self-Inflating Camping Mat, 4-Inch, Stone Extra-large self-inflating foam camping mat with comfortable 4-inch thickness Memory foam insulates you against the cold, cushions you from hard ground Honeycomb ripstop shell with 50-denier stretch top and 75-denier nonslip back Dual valves for fast self-inflation and deflation Measures 78 x 30 (head to foot) x 4 inches; weighs 5.3 pounds