Winter Sleeping Bag -40 - $175 (Amherst MA)
This a Wiggy's two bag sleeping system. A 0 degree and a 35 degree bag. The insulation is a proprietary synthetic material.The sleeping bags can be used separately or when zipped together a -40 degree winter bag.I have used this to -35 and never been cold. I have camped in conditions requiring this bag and look for a winter camper in need of an excellent sleeping system.