The Montbell Ultralight Super Spiral Down Hugger #1, referred to by our testers as the Tangerine Dream, is one of most comfortable sleeping bag we've ever tested. This bag combines good quality 800-fill down with a stretchy shell material and elasticized seams which make it ridiculously comfortable and reasonably lightweight. The Ultralight Super Spiral Down Hugger accommodates both strapping lads and dainty ladies; when not stretched out, the Down Hugger contracts to eliminate dead air space. This is a sleeping bag you sleep with not in.
Comfort is the main reason to go with the Super Spiral. Other bags offer more warmth for their weight and are more versatile. Check out our full Backpacking Sleeping Bag Review to see how this bag compared to others with attached hoods. If saving weight is a top priority visit the Ultralight Sleeping Bag Review.