NEMO  Forte 20 Endless Promise Sleeping Bag - Men's

View the 18 reviews with an average rating of 4.2 out of 5 stars
$199.95 – to $219.95

Enjoy a blissful night asleep on your side with the NEMO Forte 20 Endless Promise men's sleeping bag. Upgraded vents keep you comfortable in a range of temperatures and let you fine-tune from within.

Color: Abyss/Green Sheen
please select a Size
$219.95
$199.95
Quantity
Select size for delivery dates

Members get an estimated $21.99 (10%) back on this item as a part of your annual .

Treat yourself to new gear & clothing! Join the co-op to get a $30 bonus card when you spend $50. Details
To buy,  sign in as an REI Co-op Member or join now.

Key Details

Fill
Synthetic
Weight
Regular - Left Zip: 3 lbs. 7 oz.
Long - Left Zip: 3 lbs. 11 oz.
Compressed Volume
Regular - Left Zip: 9 liters
Long - Left Zip: 9.7 liters
Temperature Rating (F)
20 degrees (F)

Features

  • 3-season synthetic bag for the backcountry
  • As part of the NEMO Endless Promise™ collection, this bag is designed using a single material family for easier end-of-life recyclability
  • Endless Promise is a NEMO commitment to reduce resource consumption, keep gear out of the landfill and help preserve our planet for future adventures
  • All Endless Promise products are painstakingly designed to be monopolymer in order to be easily, fully recyclable (inquire with NEMO for recycling details)
  • Made with a suite of recycled fabrics and material, including a bluesign®-approved shell and a recycled liner
  • Made with bluesign®-approved 30-denier 100% recycled polyester ripstop and 20-denier 100% recycled polyester taffeta
  • Fabrics offer a buttery-soft, ultra-plush sleep experience
  • Filled with Zerofiber PCR™ synthetic insulation, made from 100% postconsumer recycled content
  • Zerofiber PCR insulation packs down small, maintains its loft, and provides warmth even when wet
  • Upgraded Thermo Gill™ vents feature a multistage zipper system that extends the comfort range
  • Classic Spoon™ shape continues to be a game changer for side sleepers, offering more room at the knees, elbows and shoulders for a less-constricted feel
  • Blanket Fold™ external draft collar dramatically blocks cold air or releases warmth and mimics the tucked-in comfort of your bed at home
  • Integrated pillow pocket
  • Patent # D804,780; patents pending

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 the NEMO Forte Product LineView all NEMO Backpacking Sleeping Bags

Technical Specs

Best Use

Backpacking

Tested Lower Limit

19 degrees (F) - ISO

Tested Comfort

30 degrees (F) - ISO

Temperature Rating (F)

20 degrees (F)

Temperature Rating (C)

-7 degrees (C)

Weight

Regular - Left Zip: 3 lbs. 7 oz.

Long - Left Zip: 3 lbs. 11 oz.

Shell

30-denier recycled polyester ripstop (bluesign® approved)

Zipper Location

Left

Insulation Type

Synthetic

Fill

Synthetic

Fill Weight

Regular - Left Zip: 2 lbs.

Long - Left Zip: 2 lbs. 14 oz.

Sleeping Capacity

1-person

Lining

20-denier recycled polyester taffeta

Sleeping Bag Shape

Semirectangular

Fits Up To (in.)

Regular - Left Zip: 72 inches

Long - Left Zip: 78 inches

Shoulder Girth (in.)

Regular - Left Zip: 59 inches

Long - Left Zip: 66 inches

Hip Girth (in.)

Regular - Left Zip: 54 inches

Long - Left Zip: 60 inches

Stuff Sack Size

9 x 11.5 inches

Stuff Sack Volume

12 liters

Compressed Volume

Regular - Left Zip: 9 liters

Long - Left Zip: 9.7 liters

Gender

Men's

Buying Advice

How to Choose Sleeping Bags for Backpacking

Do I really need a backpacking-specific bag?

Yes. These sleeping bags are lighter, pack down smaller and are more efficient at keeping you warm compared to ones for camping.

Understand sleeping-bag weight

Insulation type and bag shape affect weight the most. Always consider bags of a similar temperature rating when comparing loads.

Choose the right fit
Many sleeping bags come in regular, long and short sizes. Review the bag's size specs for the best fit.

Consider other features
Draft-blocking details, a snug-fitting hood, extra zippers and even a stash pocket can add more durability, warmth and function.

A sleeping bag inside a backpacking tent

12 min read: How to Choose Sleeping Bags for Backpacking

More expert advice

A woman peeking out of a bright-orange sleeping bag

Understanding Sleeping Bag Temperature Ratings

A backpacker walks across a footbridge in the woods

Backpacking for Beginners

A variety of sleeping bag liners on a table

How to Choose Sleeping Bag Liners

Reviews
18 reviews with an average rating of 4.2 out of 5 stars

Ratings Snapshot

Product Rating

4.2
View the reviews with an average rating of 4.2 out of 5 stars18 Reviews
11 out of 13 (85%) reviewers recommend this product

Review this Product

Adding a review will require a valid email for verification

Average Customer Ratings

Product Weight

LightweightHeavy

Ease of Use

Difficult to useVery easy to use

Most Helpful Favorable Review

5 reviews with an average rating of 4.0 out of 5 stars
Great bag
Camp Pickle
2 years ago
Received free product
Took this camping last weekend in Idyllwild. Temperatures were ~50 (F). My overall summary of the sleeping bag is that it is warm, incredibly comfortable, but bulky. This is a 20F bag, so it was definitely overkill for the 50F weather at night. I left the bag unzipped and was still quite warm in it. The bag had zippers to help vent heat, as well as smaller zippers that helped vent out some heat. This helped since it was a pretty warm night. The bag was soft with a lot of cushioning, and also had enough space that I felt that I could move around. The hood felt nice and cushioned; with an extra scarf-like layer that could keep my head warm if needed. The reason I don't give this bag a 5-star review is the size, and weight. Even without weighing it myself, it was clear that this bag was heavy. This limits the functionality to car-camping and makes this a non-contender for backpacking. Even with the compression sack, the bag was still quite bulky and would not be comfortable carried for a long time.
Show Full Review
Camp PickleReceived free product
San DIego
5 people found this review helpful

Most Helpful Critical Review

5 reviews with an average rating of 1.0 out of 5 stars
Junk zippers, will not hold up to real field use
JBob13
7 months ago
Received free product
Zippers stuck on first use, ripped shell, so fragile was worrried to further damage on first use with Boy Scouts. returned and had two managers try to get me to try and keep because of price point. For this level gear shouldnt have to worry about damaging by just using zippers and regular gentle use. Not gear that would last which is a shame at this price point
Show Full Review
JBob13
MD
4 people found this review helpful

Customer Images

  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
Daniel
Received free product
Rated 4.0 out of 5 stars

Great Bag With a Few Quirks

2 years ago

First, let me say that this bag is very comfortable. Every time I got in I felt very cozy and it was hard to get out in the mornings. The material feels silky and soft against the skin without immediately inducing sweating. The engineering of the bag also allows you to move around a bit while sleeping, as I tend to do. That being said, while there is room to shift a little bit, you may need to adjust the bag as necessary to remain comfortable around your body—it is a mummy bag, after all. I run pretty hot and was able to use this bag in the mid 40s with just a base layer on. The pillow pocket is very handy and was able to fit my Nemo Fillo in just fine. The loft is awesome on this bag, as well. The "Thermo Gill" technology is an interesting concept and while I do believe the vents allow heat to escape, I am unsure how noticeable it is. I also found the zippers to be a bit cumbersome. The Thermo Gill zippers were easy to open but took a few attempts to close. The same can be said for the entry zip. It's a beefy zipper (which I like and am thankful for) but it did seem to catch on the fabric easily. Finally, the "Blanket Fold" draft collar did not lay flat and would fall on my face with just a little jostling of the bag. I can see this feature being really handy when temps are lower, but it just felt like a nuisance to me. For these reasons I deducted one star. Overall, this is a very nice bag that I plan to use whenever I can on solo trips or when not with my partner. I believe the previous version of this bag could be zipped together but it is unclear if that feature was carried over to the current model.

Age:25–34
Weight:200–225 lbs.
Height:6'0"
Yes , I recommend this product
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
Camp Pickle
Received free product
San DIego
Rated 4.0 out of 5 stars

Great bag

2 years ago

Took this camping last weekend in Idyllwild. Temperatures were ~50 (F). My overall summary of the sleeping bag is that it is warm, incredibly comfortable, but bulky. This is a 20F bag, so it was definitely overkill for the 50F weather at night. I left the bag unzipped and was still quite warm in it. The bag had zippers to help vent heat, as well as smaller zippers that helped vent out some heat. This helped since it was a pretty warm night. The bag was soft with a lot of cushioning, and also had enough space that I felt that I could move around. The hood felt nice and cushioned; with an extra scarf-like layer that could keep my head warm if needed. The reason I don't give this bag a 5-star review is the size, and weight. Even without weighing it myself, it was clear that this bag was heavy. This limits the functionality to car-camping and makes this a non-contender for backpacking. Even with the compression sack, the bag was still quite bulky and would not be comfortable carried for a long time.

Age:25–34
Weight:150–175 lbs.
Height:5'7"
Yes , I recommend this product
  • User uploaded product image
  • User uploaded product image
  • User uploaded product image

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
Zack
Rated 1.0 out of 5 stars

Absolutely not

2 months ago

The only “endless promise” this sleeping bag offers, is that the zippers will %100 get stuck in the extremely thin and delicate fabric. The first time trying to close the zippers for the vents, they both got deeply stuck in the fabric. Keep in mind that this was in my house with warm hands. Try zipping one of these back up at the store before buying to see what I am talking about. I don’t think the people who designed this even tried their own product out before putting it on the shelves.

No, I do not recommend this product
  • User uploaded product image
  • User uploaded product image
Helpful?
Jason Li
Received free product
Atlanta, GA
Rated 5.0 out of 5 stars

Bomb Proof Camping Bag

2 years ago

It might not be a backpacking sleeping bag, but it is certainly one heck of a camping sleeping bag. While I am mainly a backpacker, I can appreciate the design and comfort of this sleeping bag. While testing out the bag, it was cozy yet roomy. The feeling I had while napping in the bag was almost the same as having my comforter's weight laid on top of me. The gills help regulate the heat of the 20-degree bag. One thing I would have liked is a zipper at the foot box for airflow, but that’s not a big deal. The zipper system was virtually snag-free. Out of the 30 times I got in and out of the bag, the zipper only snagged once. Now, going back to how roomy this bag is, while I carry a down-filled bag when backpacking, I would prefer a synthetic material if weight wasn’t a problem. It gives me peace of mind that I can easily throw this in a washer when it’s dirty without worrying about the down clumping and being ruined. I would recommend using this bag on an extra-wide pad or air mattress in general to make full use of the space. On another note, a 40-degree rated version of this bag would be amazing to crash at a friend's house. In summary, I’m really looking forward to camping with this bag in the upcoming cooler weather. It just does its job too well in this warm weather.

Age:25–34
Weight:200–225 lbs.
Height:5'11"
Yes , I recommend this product
  • User uploaded product image
  • User uploaded product image

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
JBob13
Maryland
Rated 1.0 out of 5 stars

Junk zippers, will not hold up to real field use

7 months ago

Zippers stuck on first use, ripped shell, so fragile was worrried to further damage on first use with Boy Scouts. returned and had two managers try to get me to try and keep because of price point. For this level gear shouldnt have to worry about damaging by just using zippers and regular gentle use. Not gear that would last which is a shame at this price point

Age:45–54
Weight:225–250 lbs.
Height:5'6"
No, I do not recommend this product

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
Brycemv
Oregon
Rated 5.0 out of 5 stars

Heavy, but a goodie

1 year ago

It’s pretty heavy for a 20 degree bag, but it sleeps wonderfully. Comfortable materials, and it has those great thermal vents that you can zip/unzip as needed (makes a huge difference actually

Age:25–34
Weight:150–175 lbs.
Height:6'0"
Yes , I recommend this product
Helpful?
Bobby
Received free product
Columbus, OH
Rated 4.0 out of 5 stars

Excellent bag for shorter trips!

2 years ago

Excellent warmth and fit, the thermal gills were great when I used this in late spring/ early summer while camping in southern Ohio woods. The spoon shape really does help in finding a comfortable sleep position as it’s not as restrictive in the hips and knees. The storm collar was great for preventing drafts in the cool nights/ early morning. The loft added a lot of comfort to my sleep pad. The bag is definitely not the lightest of sleep systems, so if you’re trying to be weight conscious for longer hikes/ thru hiking, you may want to look into a lighter weight options. For car camping/ overnight/ short trips, I didn’t have an issue with the extra weight. The only other real issue I had was that the zipper tended to stick, which may be solved after breaking in a bit more.

Age:35–44
Weight:200–225 lbs.
Height:6'1"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
Carlos
Massachusetts
Rated 5.0 out of 5 stars

Cozy but spacious

1 year ago

First time buying a sleeping bag for camping and it was nice and cozy. I’m 5’8” 235pd and I was able to turn inside the bag from either left or right shoulder; I was pretty impressed! In addition it felt quite spacious on my feet as advertise!

Age:45–54
Weight:225–250 lbs.
Height:6'5"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
Misty
A little bit of everywhere
Rated 5.0 out of 5 stars

Great sleeping bag

1 year ago

Great sleeping bag. Warm and side sleeper!! Very comfortable and used it in Alaska…in the summer but it was still cold and rainy

Age:45–54
Weight:175–200 lbs.
Height:6'2"
Yes , I recommend this product

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Helpful?
Burgoyneboysmama
Montrose CO
Rated 5.0 out of 5 stars

Great bag, like sleeping on a cloud

4 weeks ago

Super comfy sleeping bag, like sleeping on a cloud. Just to heavy for me for backpacking so we did return them. Everything about the bag is great, just need something for warmer temps and not at heavy to carry

Age:45–54
Weight:100–125 lbs.
Height:5'5"
Yes , I recommend this product

Product Weight

LightweightHeavy
Helpful?
1 - 10 of 19 Reviews

Questions & Answers

Loading Questions...