How to Choose Sleeping Bags for Backpacking
NEMO Coda Endless Promise 10/20F Down Mummy Sleeping Bag
$429.95 – to $469.95
Inspired by traditional tapered mummy bags, the NEMO Coda Endless Promise 10/20°F Down mummy sleeping bag has a sleek, streamlined silhouette that shaves excess weight wherever possible.
Key Details
Fill
800-fill-power duck down
Weight
Short: 2 lbs. 3 oz.
Regular: 2 lbs. 7 oz.
Long: 2 lbs. 3 oz.
Compressed Volume
Short: 4.8 liters
Regular: 5.1 liters
Long: 5.9 liters
Temperature Rating (F)
10 degrees (F)
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- Efficient, tapered mummy design cuts excess weight for ultimate packability
- Streamlined Cohaesive™ hood cinch hardware is bonded to the material and more integrated into the bag's design than traditional dangling designs
- Single, asymmetrical front zipper integrates with the Headwall™ internal draft guard to provide 360° insulated, plush protection from the cold
- A plush, insulated collar, Headwall wraps around the back of the neck and overlaps itself in front to efficiently block cold air while creating a comfortable feel
- Updated Thermo Gill™ vent extends the comfort range and creates fine-tuned control with its multistage zipper system
- With internal and external zippers, the Thermo Gill incrementally releases body heat without direct exposure to the cold
- Filled with premium 800-fill-power hydrophobic, PFAS-free, RDS-certified down
- Products certified to the Responsible Down Standard (RDS) contain down or feathers from farms certified to animal welfare requirements
- Strategically placed vertical and horizontal baffles optimize warmth and comfort while preventing migration of the down
- This premium down is ideal for frigid conditions and packs down incredibly small, making it a versatile option for both ultralight backpacking and mountaineering trips
- Hood and footbox are reinforced with recyclable, waterproof material to prevent tent condensation from soaking into the bag's fabric
- Zippered opening at the foot of the bag allows direct access and instant ventilation
- NEMO takes full responsibility for all Endless Promise® products, from production to end of life, and designs them for 100% recyclability to keep them out of the landfill
- Manufactured from a single type of material, this sleeping bag is 100% recyclable when it can no longer be repaired or resold—just send it back to NEMO
- Protected by the NEMO Lifetime Warranty
- Per industry standards, the Limit rating is considered the benchmark for men, while the Comfort rating is considered most applicable to women
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
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.
View all NEMO Backpacking Sleeping BagsEach 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 | 11 degrees (F) - ISO |
| Tested Comfort | 23 degrees (F) - ISO |
| Temperature Rating (F) | 10 degrees (F) |
| Temperature Rating (C) | -12 degrees (C) |
| Weight | Short: 2 lbs. 3 oz. Regular: 2 lbs. 7 oz. Long: 2 lbs. 3 oz. |
| Ultralight | Yes |
| Shell | 100% recycled polyester ripstop with C0 durable water repellent (DWR) |
| Zipper Location | Front |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 800-fill-power duck down |
| Fill Weight | Short: 1 lb. 6 oz. Regular: 1 lb. 8 oz. Long: 1 lb. 13 oz. |
| 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: 77 inches |
| Shoulder Girth (in.) | Short: 59 inches Regular: 63 inches Long: 67 inches |
| Hip Girth (in.) | Short: 54 inches Regular: 57 inches Long: 61 inches |
| Stuff Sack Size | Short: 7.5 x 11 inches Regular: 7.5 x 11.5 inches Long: 7.5 x 12 inches |
| Stuff Sack Volume | 10.6 liters |
| Compressed Volume | Short: 4.8 liters Regular: 5.1 liters Long: 5.9 liters |
| Gender | Unisex |
| Sustainability | Contains recycled materials Down certified to the Responsible Down Standard (RDS) |
Buying Advice
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PseudoSloth
Great Year Round Bag
7 months ago
After using Ultralight quilts over the past few years, I love how warm this bag is. There are tons of great features like the zippered foot box and vents which make it suitable for summer use, but the traditional bag design make it very warm to use in the winter as well. I put several hundred miles and many nights of use on this bag in Alaska, Colorado, Arizona, and New Mexico and it's still going strong! Even with my dogs getting it dirty, it doesn't show any signs of breaking down. I also like that it balances weight and performance. This is a solid choice for a versatile, ultralight sleeping bag.
Yes , I recommend this product
Originally posted on nemoequipment.com
itsyaboi
Great sleeping bag with tons of clever features!
1 year ago
Just got this bag and I'm stoked to be upgrading. the thermal gills work very well, and the full collar is great for keeping drafts of your neck. can't describe how much I love the zip at the bottom. The only complaint I have is that the advertised compressed volume differs from reality. I got the Long length and the spec sheet says it should compress to 6L. I was barely able to get it into a 10L stuff sack. Maybe you can get it to 6 with an industrial vacuum chamber, but no chance in the field. Love everything else though!
Yes , I recommend this product
Originally posted on nemoequipment.com
Anonymous
Versatile and cozy
6 months ago
I have been using this sleeping bag for quite a while now and really like it. It's lightweight and has a handful of features that make it versatile and my go-to sleeping bag for chilly conditions. First of all, it is lightweight and compresses down nicely for its temperature rating. Second, the venting it has is absolutely killer. It is super effective, making it possible to bring this bag for a wide range of trips with varied low temps. I have taken this bag on adventures where the lows were 10°f, pretty much its limit, and as long as you have the proper sleeping pad, the Coda 10/20 will keep you warm. Last thing I'll mention is the waterproofing on the footbox. It's great! I never wake up to wet or cold feet. Of course I do what I can to minimize condensation in my tent, but some condensation cannot be helped when the temps fall. And when that's the case, I am grateful for the design of this bag! I trust it to perform well.
Yes , I recommend this product
Originally posted on nemoequipment.com
DaveSAR
Slept like a baby.
6 months ago
Did our county search and rescue training in western Washington in January with it. It was just above freezing and rainy, like it usually is during the winters here. Worked like a charm. It’s going back out in Feb and March for more of the same. Used it with the Tensor Extreme Sleep pad. I went to bed wet and woke up dry.
Yes , I recommend this product
Originally posted on nemoequipment.com
Bcmountaindweller
Incredible bag, thoughtful features
11 months ago
If you want to a top notch bag this delivers. For a mummy bag, the long fits me really well at 6’3 with enough shoulder width to be surprisingly comfortable. Excellent build quality. Love the waterproof head and foot box and the thermal gill in no joke when it’s warm. Can’t say enough good things
Yes , I recommend this product
Originally posted on nemoequipment.com
BigErn
Very Warm and Comfortable
2 months ago
Camped in 30-degree weather and this sleeping back kept me nice and warm. Loved the ability to vent the upper section and open the footbed to increase airflow to your feet. Highly recommend.
Yes , I recommend this product
Originally posted on nemoequipment.com
HappyCamper
Great sleeping bag
1 month ago
I just used this sleeping bag for the first time and it’s the best one I’ve ever had. It does great with colder temperatures. I would recommend to anyone looking for a new sleeping bag.
Yes , I recommend this product
Originally posted on nemoequipment.com
Cath
Love it
3 months ago
Love my Coda, Did use it just couple times since my purchase but the features arefor me, a plus. I'm 5'3 and the short one is roomy enough.
Yes , I recommend this product
Originally posted on nemoequipment.com
wein0422
cozy
11 months ago
This is a warm and cozy bag. I have the regular size that feels long to me cause I'm 5'6", but I could not justify trying to fit into a short. That aside, many bags leave space that your body has to fill with warmth before the bag starts to warm up...As bags get older, they have a harder time trying to maintain warmth cause the down begins to flatten or thin, leaving more airspace. This air space gets cold and the sleeper needs to wear some more clothes or fill the space with stuff so that the sleeper does not have to fill the bag with its own heat. This latter thing has happened to me. My old bag, which was a 17-30 degree bag is now a 25-40 degree bag. It's old even though I love it. Soooo. This bag takes away that problem by seemingly filling the empty spaces. It's not tight, it's just soft and cozy. So you do not feel restricted at all. The gills, I can't comment on yet. On this bag, there is only one gill. And the internal zipper tends to be "present". I wish the zipper to get in and out were a little longer so it was easier to ... get in and out. the hood is a little tighter than I would like. And at 2lbs 9 ounces, it's a little heavy. The foot box zipper isn't that helpful unless you are in warmer weather. But I wear EE booties, so my feet don't sweat. I have a single-wall tent, so there is usually (not always) some condensation on the tent's inner walls, I appreciate the special fabric around the foot box and at the top of the hood to keep them dry. Make no mistake this is designed to be a warm bag. and that is what it is. cozy and warm, without the need for stuffing or extra clothes. I would not take this bag in temperatures 50 or above. You get in, get warm, and go to sleep. Note: as part of the review, I am required to say whether I would recommend it or not. I find this bag, a situational bag, I would recommend it for shoulder seasons. But I don't feel like it's a three season bag. And it has just enough going against it (the gill zipper, ingress/egress, etc.) that I can't recommend it. But I do like it.
No, I do not recommend this product
Originally posted on nemoequipment.com