Why the Mummy Sleeping Bag is More Efficient
June 22nd, 2010
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The main styles of sleeping bags are the rectangular bag, the mummy-shaped bag and the tapered bag. Each bag has different insulating qualities brought about by the shape. The kind of filling used makes a lot of difference on the efficiency of sleeping bags. However, the shape of the bag has also a lot to do with keeping the person warm.
The mummy sleeping bag is a tight fit to the user’s body. Some even feature hoods that tighten around the head by pulling a drawstring.This kind of sleeping bag, although confining, is advantageous in extremely cold locations. The less airspace inside the bag makes it more efficient in keeping the user warm. The more available free space, the more there is to heat.