The gear that gets you there.
The top three in every category.
Men’s and unisex picks first. Women’s picks on the same page.
Full mummy bags for hikers who want a zipper and a hood. Women’s cuts on the same page.
Three picks. That is the whole list. If it is not here, it did not earn a place.
Men’s / unisex bagsWomen’s bags
Surveys 40% · independent tests 30% · merchant ratings 15% · relative street price 15%. Sources & method
Listed prices and shop ratings stay live once a shop page loads. GEAR UP for official product page.
Built from published thru-hiker surveys and independent testing — not commissions. Sources & method · Disclosure
Shop the men’s or unisex product.
Swipe — three picks side by side
850-fill mummy · 15°F · 10D shell
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Ultralight mummy with a hood and zipper. OutdoorGearLab’s 2026 sleeping-bag pick.
Sources: CleverHiker
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850-fill mummy · 30°F · co-op
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REI’s 30° mummy. Lighter than most bags, sold at co-ops, easy to replace in town.
Sources: The Trek
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850-fill mummy · 20°F · draft collar
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20° Western Mountaineering mummy with a draft collar. The premium bag you keep.
Sources: OutdoorGearLab
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Shop the women’s product. Unisex cottage pieces are labeled on the card.
Swipe — three picks side by side
Women’s 850-fill mummy · 15°F
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Women’s Spark 15. Same ultralight mummy, cut and filled for a women’s fit.
Sources: OutdoorGearLab
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Unisex Magma 30 · nine size options
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Unisex Magma 30 with a nine-size run. Short, medium, long — narrow to wide.
Sources: The Trek
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Women’s roomy mummy · 30°F
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Women’s Disco 30. Roomy hourglass mummy for side sleepers who want a bag, not a quilt.
Sources: Halfway Anywhere
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Women’s mummy bags add fill and shorten the cut. The Spark 15 Women’s is the ultralight pick. Magma 30 is unisex with nine sizes — that is the honest co-op option when a women’s SKU is not on the wall. NEMO Disco 30 Women’s is the roomy bag for side sleepers who want a zipper, not a quilt.
A mummy bag closes with a zipper and a hood. It is heavier than a quilt. It is also warmer if you toss, sleep cold, or hate drafts at the shoulders.
Sea to Summit Spark 15 is first: 850-fill, about 26 ounces, OutdoorGearLab’s 2026 ultralight bag. REI Magma 30 is Best Value — a 30° mummy you can buy and replace at a co-op. Western Mountaineering UltraLite is the Premium Pick: a 20° bag with a draft collar, built to last a decade. Women’s Spark, unisex Magma sizes, and a roomier Disco 30 sit on the second row.
Sea to Summit Spark 15
Card 25.7 oz · $549 · 15°F · 850-fill · 10D. OGL measures ~1.6 lb regular; 850+ FP, box baffles on cold models, draft collar, full zipper. Fragile 10D shell and zipper snag called out in tests.
Hooded zipper mummy for hikers who want a bag, not a quilt. HA 2026 PCT: Enigma quilt leads most-common sleep systems; Spark appears among highest-rated bags/quilts. Slightly roomier UL mummy; thin shell needs care.
Best Overall mummy in this ranking: OGL/CleverHiker UL hooded bag with zipper.
For more information, go straight to the source. Click GEAR UP for the product page.
REI Co-op Magma 30
Card 24.4 oz · $379 · 30°F · 850-fill. Magma line is REI’s UL down mummy family; OGL tests Magma 15 siblings heavily. Wide size matrix (short/regular/long; widths). Member returns make fit less risky.
Co-op 30° mummy: lighter and cheaper than many premium 15–20° bags, sold where you can try sizes. Warmer-limit than Spark 15; quilt still more common on HA thru lists.
Best Value: co-op 850-fill mummy with real size options and service.
For more information, go straight to the source. Click GEAR UP for the product page.
Western Mountaineering UltraLite
Card 29 oz · $660 · 20°F · 850-fill · draft collar. Classic WM cut; Better Trail / CleverHiker treat UltraLite as premium three-season with honest warmth. Heavier than Spark 15 card weight; durable reputation.
Premium bag you keep across seasons. HA highlights WM Versalite more than UltraLite by name; same brand warmth reputation. Not the lightest UL mummy; the one with draft collar and longevity.
Premium Pick: Western Mountaineering build quality in the mummy shortlist.
For more information, go straight to the source. Click GEAR UP for the product page.
Sea to Summit Spark 15 Women’s
Card 32.8 oz · $549 · women’s 850-fill · 15°F. Same Spark platform as men’s Best Overall with women’s differential cut and fill. Heavier on the card than men’s regular — match the women’s SKU, not the men’s ounce claim.
Same UL hooded-zipper role as men’s Spark; size the women’s bag. Quilts still lead HA most-common lists.
Best Overall women’s bag card: women’s Spark 15 on the locked mummy shortlist.
For more information, go straight to the source. Click GEAR UP for the product page.
REI Co-op Magma 30 — unisex
Card 24.4 oz · $379 · unisex Magma 30 · nine size options. Women’s row points at the unisex Magma size matrix rather than a separate women’s-only bag.
Fit via REI’s size matrix instead of forcing a men’s regular. Same co-op replaceability story as men’s Magma 30.
Best Value women’s-row card: unisex Magma 30 sized to the sleeper.
For more information, go straight to the source. Click GEAR UP for the product page.
NEMO Disco 30 Women’s
Card 36 oz · $300 · women’s roomy mummy · 30°F. Disco’s spoon/hourglass cut leaves space at knees and elbows versus tight UL mummies. Heavier and less packable than Spark; comfort-first.
Women’s bag for side sleepers who want a zipper bag, not a quilt, and refuse a sarcophagus cut. Heavier than Magma/Spark cards; Trail Tough badge matches durability/comfort over grams.
Trail Tough women’s pick: roomy Disco 30 for sleepers who prioritize toss-and-turn space.
For more information, go straight to the source. Click GEAR UP for the product page.
This ranking already sits in a finished kit. Weighed. Ranked. Ready.
A 15° bag, a warmer pad, a fleece under the puffy. For starts and finishes that are not summer.
9 lb 15.4 oz base · Open kit →02 · Sierra snowSnow travel with the traction this site already ranks #1. Rain pants and hiking pants on. No ice axe — that ranking does not exist here.
11 lb 2.6 oz base · Open kit →Rankings and kits are based on published surveys and independent analysis. They are opinions for informational purposes only. Users are responsible for choosing and using gear appropriate to their conditions and experience. Thru Picks is not liable for outcomes related to product use. Terms