NEMO  Forte 20 Endless Promise Synthetic Sleeping Bag - Men's

$199.95to $259.95

Plan for 3 seasons of camping adventures with this NEMO sleeping bag. The Classic Spoon® shape is great for side sleepers. Its high-performance synthetic fill will keep you warm even when wet.

Color: Fortress/Pelican
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Features

  • Classic Spoon® shape adds room at elbows and knees for versatile comfort and a less-constricted feel
  • 2-stage Thermo Gill™ zippered vents extend the comfort range with a new multistage zipper system
  • Blanket Fold™ design offers a cozy, oversize draft collar; tuck it in for greater warmth and leave unfolded to release any excess heat
  • Zerofiber™ 800 lightweight synthetic insulation is made from 100% postconsumer recycled content and offers the best warmth-to-weight ratio from NEMO
  • Hood and footbox are reinforced with recyclable material treated with PFAS-free waterproofing to prevent tent condensation from soaking into the bag's fabric
  • A fabric set of 20-denier 100% recycled ripstop polyester offers a buttery-soft, ultra-plush sleep experience
  • Zip 2 Fortes (with opposing zipper sides) together to create a double sleeping bag (2nd bag not included)
  • Protected by the NEMO Adventure Forever Guarantee™
  • Part of the NEMO Endless Promise® collection
  • 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
  • Manufactured from a single type of material, this sleeping bag is fully recyclable at the end of its life—just send it back to NEMO to handle the rest

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

18 degrees (F) - ISO

Tested Comfort

29 degrees (F) - ISO

Temperature Rating (F)

20 degrees (F)

Temperature Rating (C)

-7 degrees (C)

Weight

Regular - Left Zip: 3 lbs. 5 oz.

Regular Wide - Left Zip: 3 lbs. 10 oz.

Long - Left Zip: 3 lbs. 9 oz.

Long Wide: 3 lbs. 15 oz.

Shell

20-denier 100% recycled polyester ripstop with C0 durable water repellent (DWR)

Zipper Location

Left

Insulation Type

Synthetic

Fill

Zerofiber 800

Sleeping Capacity

1-person

Lining

20-denier 100% recycled polyester ripstop with C0 DWR

Sleeping Bag Shape

Semirectangular

Fits Up To (in.)

Regular - Left Zip: 72 inches

Regular Wide - Left Zip: 72 inches

Long - Left Zip: 78 inches

Long Wide: 78 inches

Shoulder Girth (in.)

Regular - Left Zip: 62 inches

Regular Wide - Left Zip: 70 inches

Long - Left Zip: 64 inches

Long Wide: 72 inches

Hip Girth (in.)

Regular - Left Zip: 57 inches

Regular Wide - Left Zip: 64 inches

Long - Left Zip: 58 inches

Long Wide: 66 inches

Stuff Sack Size

Regular - Left Zip: 9.5 x 18 inches

Regular Wide - Left Zip: 10.5 x 18 inches

Long - Left Zip: 9.5 x 18 inches

Long Wide: 10.5 x 18 inches

Stuff Sack Volume

20.8 liters

Compressed Volume

Regular - Left Zip: 10.6 liters

Regular Wide - Left Zip: 11.9 liters

Long - Left Zip: 12.1 liters

Long Wide: 12.4 liters

Gender

Men's

Sustainability

Contains recycled materials

Reviews

14 reviews with an average rating of 5.0 out of 5 stars

92% 11 of 12 reviewers recommended

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Customer Images

Jesh
Rated 5.0 out of 5 stars
1 month ago

Liked it enough to buy two more

Picked up the Men's Forte 20 in Regular Wide and it's been a great bag so far. Roomy without feeling bulky to sleep in, and warm. The fabric's smooth enough that moving around inside doesn't feel like a fight, which matters more than I expected. The spoon shape is exactly what I wanted as a side sleeper, and it gives you room to spread your knees out too. The thermo gills are a nice touch on warmer nights when you need to vent a little heat without unzipping the whole bag. The footbox gives your feet good room to move, though mine did run a bit colder than I'd like. One small detail I really appreciate: the storage bag is boxy instead of round, so it actually stacks on a shelf instead of rolling around everywhere. Liked it enough that I bought two more for the family.

Myles Kroll
Age:55–64
Weight:175–200 lbs.
Height:6'0"
Rated 5.0 out of 5 stars
6 days ago

Age:55–64
Weight:175–200 lbs.
Height:6'0"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Dan Konzelman
Rated 5.0 out of 5 stars
2 weeks ago

Game changer for side sleepers!

I’ve tried standard mummy bags in the past, but the Spoon™ shape on the Disco makes a world of difference. Being able to actually shift around and sleep comfortably on my side without feeling trapped is huge. The Thermo Gill vents work great for temperature regulation when it’s not quite freezing out, and the draft collar keeps the chill out when the temp drops. It strikes a great balance between roominess, warmth, and packability. Plus, knowing it's fully recyclable and responsibly built makes it even better. Highly recommend if you value a good night's sleep in the outdoors!

Ryan
Rated 5.0 out of 5 stars
1 month ago

Room for days

Got the Forte 35 degree WIDE long sleeping bag and this thing is awesome. Perfect for summer camping. The older I get, I have less need for a super packable bag, more comfort and car camping these days. That being said, it is still a very packable bag. This bag delivers on comfort and room for days. I am 6’3” and have a little room to spare. The spoon shape, alongside the wide feature, is amazing for comfortable nights. I can finally sleep on my side and maneuver inside my bag. Also, the blanket fold collar is great. You can wrap it around your neck and seal yourself in, or you can tuck all the way in and place the collar into the mummy head of the bad and completely seal warmth in. I was so impressed with the style, I purchased a Disco 15 degree for the colder nights.

Dee
Location:Washington
Age:35–44
Weight:125–150 lbs.
Height:5'10"
Rated 5.0 out of 5 stars
7 days ago

Warm bag

Warm sleeping bag! Definitely worth every dollar. Only downside is no inner pocket for cell phone. Besides that very comfortable and warm.

Age:35–44
Weight:125–150 lbs.
Height:5'10"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Eric25
Rated 5.0 out of 5 stars
2 months ago

Well thought-out design

So far I've only done a pre-trip test, but I was impressed enough with the details that I'm pretty sure this is the best sleeping bag I've had. The shape allows for natural movement and none of that constricted feeling, while still saving some pack space and minimizing deadspace. The gills are well thought-out, as are the neck baffle and every other detail. I haven't bought a sleeping bag in a while, and I'm super impressed with this one and looking forward to logging some nights in it soon.

Nicole
Rated 5.0 out of 5 stars
3 weeks ago

Love the wide!

I purchased this bag in the regular wide 20F- I was really excited to see the wide version released as the regular width was just slightly too narrow for how I like to sleep. The wide version is absolutely perfect and I'm excited to use it while camping! I also purchased the wide long 35F to use as a summer bag and to have a bit more extra room when it's warm out.

Pintz Guzld
Rated 5.0 out of 5 stars
2 months ago

Great summer bag.

Just bought this bag for a 5 day bikepacking trip. Low temps were in upper 40s and highs in the upper 80s. It was the perfect bag for me at these temperature ranges. I like that it packed small enough to mount to my handlebars. The zip vents were a nice feature that I didn't think I needed but used on a warmer evening. Happy camper.

Nelly113
Rated 5.0 out of 5 stars
2 weeks ago

Fits great!

I started using Nemo sleeping bags when I started backpacking in the mountains. These sleeping bags have great quality, and I can use them year around with the vents they have to help with temperature control. My family now uses them exclusively. This bag is very lightweight and fits me well. I am 6’2 250lbs

Tib999
Rated 5.0 out of 5 stars
3 months ago

Comfortable and roomy

I have had an opportunity to use this bag a few times, I like it a lot. Very comfortable and roomy! The pack size is a little bigger than my down bag but its not a issue for car camping. If pack size is not an issue I would definitely recommend this bag.

1 - 10 of 14 Reviews

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