Updated for 2014! If comfort and ease-of-use are top priorities in your backpacking mattress, the Therm-a-Rest® Trail Pro self-inflating mattress should be at the head of your list. Our warmest and most comfortable self-inflating mat that’s still trail-friendly, the Trail Pro gets even better this season with our most advanced, vacuum-poured foam, saving you weight and space in your pack without any sacrifice in comfort. In fact, we even added some by straightening the edges in the torso area to increase sleep surface and offer better gap-free mating of mattresses. Stuff sack included.