Sleeping Bags 101 An excerpt from The Family Camping Guide After a long day in the backcountry or a hike along a well known trail at Balsam Lake, few pleasures compare to crawling into a comfortable, warm, well designed sleeping bag for a good night’s sleep. A lot of thought goes into that bag, by-the-way. Shape, fill, design, weight, materials, construction are only a few considerations that must be addressed before a sleeping bag gets to you. Shape Lets start with shape, a