Many people do not like to carry sleeping bag liners, because they add bulk and weight to a backpack. It does make more sense, usually, to go out and get a sleeping bag with the proper temperature rating, rather than trying to augment a sleeping bag with a liner. Still, there are other reasons, besides warmth, to use something like a mummy sleeping bag liner.
In fact, many people use sleeping bag liners for something entirely different, to keep their sleeping bags clean. After a week of backpacking, for instance, you’re not very clean, which means that the inside of your sleeping bag is also not very clean. But if you’ve been using a liner the whole time, all you need to clean is the liner, and not the entire sleeping bag.
There are a number of different materials available for sleeping bag liners. Silk, for instance, is a great one for keeping a sleeping bag clean.
Many families have thought about installing a
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Cyclists have begun to use the