The Sea to Summit Camp Self-Inflating Sleeping Mat Sleeping Pad is a great option for a top quality self-inflating mat at more affordable price point. The Camp Mat is a 1.5” thickness foam mattress that utilizes Sea to Summits Delta Core-V vertical foam coring technology. Small vertical Delta Core-V voids in the shoulders, hips and feet keep you warmer and supported. Larger vertical Delta Core-V voids in non-body contact areas reduce the mat’s weight and bulk. This results in great support and pack-ability but removes unnecessary weight to minimize packed size. A 75-Denier polyester top and bottom fabric offers excellent wear and durability. Patent-pending Multi-function valve twists over to allow the mat to be rolled tightly without fighting re-inflation as you go. With an R 4 insulation rating this sleeping pad offers 3-season warmth and comfort. PillowLock attaches any inflatable camp pillow(not included) securely to the mat, holding it in place for a slip-free sleep. Includes Stuff Sack, Repair Kit, PillowLock. R-Value: 5