Intelligently designed thanks to pressure-mapping technology, the Therm-a-Rest LuxuryMap Self-Inflating Foam Camping Mattress with TwinLock Valve delivers comfort in all the right places. The thoughtfully-designed 3-inch sleeping pad is made to deliver the right support exactly where it's needed. With a 6 R-value, the LuxuryMap is well-suited for camping in any season or condition (R-value measures the material’s ability to insulate; the higher the R-value, the warmer the sleeping pad). The expandable foam core will self-inflate once the valve opens. Equipped with an easy and convenient TwinLock valve, the sleeping pad has dedicated "in" and "out" valves to make inflating and deflating the pad easier than ever. The LuxuryMap sleeping pad also includes a stuff sack to protect the pad when it's packed down. Available in three sizes: Regular measures 72x20x3 inches inflated, 21x9.5 inches rolled, and weighs 3.25 pounds; Large measures 77x25x3 inches inflated, 26x9.5 inches rolled, and weighs 4.19 pounds; X-Large measures 77x30x3 inches inflated, 31x10 inches rolled, and weighs 5.13 pounds. Manufacturer’s limited lifetime warranty.