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Sleeping Bag Storage: Dry Fully and Avoid Long-Term Compression

REI recommends fully drying a sleeping bag after a trip, removing it from its compression sack, and storing it loosely in a breathable cotton or mesh bag in a cool, dry place.

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Compression is convenient on the trail, but months in a tight stuff sack can compromise the insulation loft that helps retain warmth. These storage basics apply to both down and synthetic sleeping bags, and differ from the separate problem of tent care.

Your try-it-at-home checklist

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After a trip, take the sleeping bag out of its tight travel or compression sack. Open the zipper and check the shell and lining for moisture.
Air it out fully. If damp, follow the maker's instructions and dry it in a shaded, ventilated location until no moisture remains.
Avoid prolonged direct sun exposure. Turn it inside out as needed to let the lining dry and check that moisture has not remained in the insulation.
For long storage, do not leave it tightly compressed. Loosely place it in a large, breathable cotton or mesh storage sack with room for the fill to loft.
Choose a cool, dry indoor closet. Avoid damp basements, garages, attics and hot car trunks with big temperature swings.
Before your next trip, spread it out and inspect for mustiness, mold, dampness or damage. If washing is needed, follow the down- or synthetic-specific care label.

Your try-it-at-home checklist

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