Sea To Summit UltraLight ASC Mat Great sleeping comfort with ultralight weight for all your night time needs. The Sea To Summit UltraLight ASC Mat is ideal when going light and fast is your aim and getting a great night's sleep is essential for the next day's adventure. The Ultralight Mat has been constructed using Air Sprung Cells which offer a more comfortable nights sleep. The larger air pockets are created by using many looped TPU baffles which connect the top and bottom fabric layers. These looped baffles are positioned further apart creating larger pockets of air when inflated that require less fabric overall. The larger pockets let you sink into the mat without touching the ground, this ensures complete comfort even for side sleepers. As well as this, the mat has been constructed using Exkin Platinum which helps to radiate heat back into the body. The lightweight, quiet non-woven fabric has a thin metalised layer that helps to reflect body heat so you'll never feel too col