The Nemo Tensor Alpine Ultralight Sleeping Pad - The Nemo Tensor Alpine Ultralight Sleeping Pad is a mountaineering pad offering lightweight, compact, extreme warmth without sacrificing comfort. Three layers of suspended metalized film and a unique construction efficiently retains your body heat bringing warmth and comfort to cold weather camping. Nemo Spaceframe baffles are an ingenious invention that allow for a quieter, more stable sleeping experience. This technology uses low-stretch die-cut trusses to eliminate springiness found in competitor pads, and is better for rolling side-to-side and for keeping your elbows from poking through to the ground when propped up reading.