Why Use a Quilt Instead of a Mummy Bag?
For some backpackers—including us—a quilt offers the best of both worlds for lightweight backpackers. Quilts can be cinched shut for colder weather, or fully opened up to serve the same purpose and sleep style as the quilt you have on your bed at home. Studies of thermal efficiency have shown that the down compressed under your body in a traditional mummy bag doesn’t necessarily keep you any warmer than a sleeping pad will—it’s the lofty down around the rest of you that keeps you warm. Quilts save weight by not having down underneath you, and their open sides are less confining than a mummy bag. Quilts can feel draftier than a mummy bag, so if you sleep cold, consider going for a lower temperature rating, or getting a wider quilt to ensure full coverage without gaps.