The Tension Comfort 800 is the hottest option you can chose if you are looking for a sleeping bag designed to be extra roomy and generously spaced. The extra wide bag is made for any trip to the outdoors where the temperature will drop to freezing cold, and the two-way full length zipper is down covered to keep the hot air inside the bag where you can enjoy it. The adjustable contour hood gives the bag a good feel if you choose to sleep with your head inside it.