Travel and Outdoor Equipment Price Comparison > Sleeping Bags > Sleeping Bag Liners
Sleeping bag liners can be very useful. They can prevent the sleeping bag getting dirty and sweaty and prolong intervals between washing, and they are extremely easy to clean. Some of them can also add an extra season rating to a sleeping bag, turning a 2 season sleeping bag into a 3 season sleeping bag and liner combination. In extreme heat, it may also be preferable to just use a liner, without a sleeping bag at all.
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