NEMO Soul 30/40 Genderless Endless Promise Synthetic Mummy Sleeping Bag
With a sleek shape that trims excess material and weight but still offers plenty of comfort, the NEMO Soul 30/40°F Genderless Endless Promise Synthetic Mummy Sleeping Bag is made for ultralight trips.

Key Details
- Efficient, tapered mummy design cuts excess weight for ultimate packability
- Single, asymmetrical front zipper integrates with the innovative NEMO Headwall™ internal draft guard to provide 360° protection
- Headwall—a plush, insulated collar—wraps around the back of the neck and cozily overlaps itself in front to efficiently block cold air while creating a comfortable experience
- Balancing the front zipper is a single Thermo Gill™ vent, enabling fine-tuned temperature control
- With internal and external zippers, the Thermo Gill incrementally releases body heat without direct exposure to the cold, extending the usable temperature range of the bag
- For additional instant ventilation (or simply to let your feet poke out), the footbox also features a zippered opening
- Strategically placed vertical and horizontal baffles optimize warmth and comfort while preventing migration of the aerospace-grade, 100% recycled synthetic insulation
- Zerofiber™ 800 insulation is made from postconsumer recycled material and is the highest-performing synthetic fill possible—ultralight, water-resistant and warm when wet
- Streamlined hood cinch hardware is bonded to the material and more integrated into the bag's design than traditional dangling designs
- Hood and footbox are reinforced with recyclable, waterproof material to prevent tent condensation from soaking into the bag's fabric
- A mono-polymer design, Soul meets the NEMO Endless Promise® standard and can be fully recycled at the end of its life—just send it back to NEMO and they'll handle the rest
- NEMO takes full responsibility for all Endless Promise products, from production to end of life, and designs them for total recyclability to keep them out of the landfill
- A genderless bag, Soul calls out both the Limit temperature rating and the Comfort temperature rating in its name
- Per industry standards, the Limit rating (the first number referenced in the series) is considered the benchmark for men
- The Comfort rating (the second number referenced in the series) is considered most applicable to women
- Protected by the NEMO Lifetime Warranty
Imported.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 32 degrees (F) - ISO |
| Tested Comfort | 41 degrees (F) - ISO |
| Temperature Rating (F) | 30 degrees (F) |
| Temperature Rating (C) | -1 degrees (C) |
| Weight | Short: 1 lb. 13 oz. Regular: 1 lb. 15 oz. Long: 2 lbs. 2 oz. |
| Shell | 100% recycled polyester ripstop with C0 durable water repellent (DWR) |
| Zipper Location | Front |
| Insulation Type | Synthetic |
| Fill | Zerofiber 800 postconsumer recycled |
| Fill Weight | Unavailable |
| Sleeping Capacity | 1-person |
| Lining | 100% recycled polyester taffeta with C0 DWR |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Short: 66 inches Regular: 72 inches Long: 78 inches |
| Shoulder Girth (in.) | Short: 59 inches Regular: 63 inches Long: 67 inches |
| Hip Girth (in.) | Short: 52 inches Regular: 55 inches Long: 59 inches |
| Stuff Sack Size | 7 x 10.5 inches |
| Stuff Sack Volume | 11.5 liters |
| Compressed Volume | Short: 5.4 liters Regular: 6.4 liters Long: 6.6 liters |
| Gender | Unisex |
| Sustainability | Contains recycled materials |
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Customer Images
Compact and comfy as advertised
Love how compact this packs up, makes for a snug fit when sleeping though if you move a lot in the night. Im 5'10" male and fit without room to spare. Great summer bag, draft collar seems unnecessary.
Exemplary product
I went out on a limb for this one. The price was reasonable, but really o ordered this as my summer bag and for being something that packs down small. On all counts I've been impressed. It's small, lightweight, easy to pack and fits well. I do like the ability to totally unzip the feet and let them hang out to stay dry and cool. I'd recommend it to others as a warm weather sleeper. It does fit on the tighter side, which works well for my short body, but if you like wiggle room, go a size up.
So TIRED of GENDER
Just wondering what the difference between a unisexbag and a "genderless" bag is? So the sleeping bag doesn't identify as anyone? That's a relief. I'd hate to think I was sleeping inside the wrong gender. Nemo & REI...that's enough of this poppycock.
Awesome bag!
Got this in time for a camping trip and glad I did since the weather dropped to ~30 degrees at night. Was insanely comfortable the entire night. I really appreciated the foot and chest vents and the overall comfort of the bag! Will be using this as my primary bag for Patagonia in a few months.
Fantastic Bag
As a backcountry hunter I wanted something light and warm. This is it!! I do sleep a little cool so this bag actually serves me well year round in the mountains. I can lay it on me in summer and then bundle up in winter. Perfect bag that packs small and is light.
Exceptional!
Great sleeping bag, designed well, and very functional. Vents are easily accessible and opened, material feels robust, yet strong and durable. Can't wait to spend more nights in it!
Great bag
This bag is great! Lightweight and warm. I used it on a hunt with lows ranging from 40 degrees to 28. Kept me warm and comfortable.
Amazing comfort and protection
So thrilled with this product! Very roomy, keeps the cold temps at bay.
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