Riff Endless Promise Sleeping Bag: 15F Down - Men's
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View Similar ProductsSide-sleep warmth and space with Riff Endless Promise Sleeping Bag: 15F
What Our Gearhead® Experts Are Saying:
"I’m a chronic side sleeper and the Riff lets me tuck a knee without cold spots. It’s warm, packs small, and the Endless Promise build feels future-minded."
We turn cold nights into cozy ones with the Riff Endless Promise Sleeping Bag: 15F. The signature spoon-shape opens room at the knees and elbows so we can shift naturally, while targeted baffling and draft control help hold heat when temps dip.Built within the Endless Promise program, the materials and construction are chosen for long life and a clear path at end of life—adventure-ready today and tomorrow.
Details
- Side-sleeper 15F down bag for shoulder-season treks
- Spoon-shape adds room at knees and elbows
- Efficient baffles and draft collar reduce heat loss
- Smooth, snag-resistant zipper for easy exits
- Soft liner feels comfortable on bare skin
- Packs compactly for backpacking and alpine approaches
- Internal pocket stashes headlamp and phone
- Compression sack included for small carry
- Item #NEMK04Z
- Responsible Collection
- Responsibly Sourced
- Material
- 100% nylon
- Insulation
- 800-fill RDS-certified hydrophobic down
- Shape
- mummy, spoon
- Zipper
- full-length
- Max User Height
- [regular] 6ft, [long] 6ft 6in
- Shoulder Circumference
- [regular] 62in, [long] 64in
- Hip Circumference
- [regular] 54in, [long] 55in
- Foot Circumference
- [regular] 59in, [long] 61in
- Bag Length
- regular, long
- Draft Tube
- Blanket Fold draft collar, full-length
- Pockets
- 1 pillow
- Venting
- Thermo Gill
- Fill Weight
- [regular] 1lb 3oz, [long] 1lb 4oz
- Degree
- 15F
- European Norm/ISO Comfort Rating
- 28F
- Storage Sack
- included
- Stuff Sack
- included
- Stuff Size
- [regular] 12 x 7.5in (6.9L), [long] 12 x 7.5in (7.5L)
- Claimed Weight
- [regular] 2lb 6oz, [long] 2lb 9oz
- Activity
- hike & camp
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 48 ratings
Review Summary
Customer Images
Here's what customers have to say
The sleeping bag is praised for its comfort, warmth, and versatility, with features like the spoon-shaped design and temperature regulation allowing for excellent performance. While some users found it colder than expected and the pockets could be improved, the bag is generally considered an excellent and comfortable option that provides great value for outdoor activities.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageMarch 2, 2025
Perfect in the Alpine or by the Ocean
This is a versatile bag that with the gills you can make it warmer or colder! It packs great and it’s a safe bag to keep you warm in the right seasons!
Originally reviewed on nemoequipment.com
November 22, 2024
Beautifully crafted and cozy, but cold…
I want to start off by saying I love this sleeping bag and it is crafted magically. I am 6ft with a broader build and went with the regular and it fits absolutely perfect, spacious enough for me to move around pretty comfortably without getting twisted up. However, it sleeps AT LEAST 15F colder than the comfort temp :( I took it down to 29-30F and absolutely froze, luckily I had an extra 25F quilt to throw over but even with that I was still pretty darn cold. I was wearing 240 Merino wool base layers and down booties, so wasn’t like I was naked. I find the ISO temperature ratings to be all over the place unfortunately. I would probably say this is a 27F LIMIT and 38F COMFORT bag, as opposed to the labeled 17F limit and 28F comfort.
Originally reviewed on nemoequipment.com
April 30, 2024
Great night sleep with great features
As a side sleeper this spoon-shaped bag gives plenty of room and allows for flipping side to side. I have this bag in both 30 and 15 degree rating. The 15 degree bag has performed well in temperatures below freezing. Paired with a Nemo Tensor wide sleeping pad it becomes a great sleep system. Keep up the great work Nemo!!!
Originally reviewed on nemoequipment.com
April 29, 2024
Perfect sleeping bag
The quality of Nemo sleeping bags is phenomenal. My husband and I buy only Nemo sleeping bags because we love them so much. I recommend this bag to all my friends and so many have been sold because of it. They all love them too!
Originally reviewed on nemoequipment.com
April 29, 2024
Solid bag
This bag is very comfortable as a side sleeper and love the extra through that went into it like gills, no catch zips, draft collar, and...wait for it...a pillow sleeve in the hood! Plus, as an endless promise and Nemo's amazing warranty, it's worth spending extra on this!
Originally reviewed on nemoequipment.com
April 29, 2024
All-Around Great
The bag is warm, but as a warm sleeper the footbox and vents really allow me to stay comfortable overnight. This also comes with a compression sack which is super helpful for packing. 10/10!
Originally reviewed on nemoequipment.com
April 27, 2024
Great sleeping bag!
This bag is so comfy and warm. Game changer for a side sleeper like myself!
Originally reviewed on nemoequipment.com
April 26, 2024
Hands down best sleeping bag.
The RIFF 15 has been the best bag I’ve ever used. I work at an outdoor store and have tried some Kelty down bags and a Big Agnes 3 in 1. Although those bags have their perks, the RIFF fits all my needs and I have been extremely happy with it. I can proudly say I have converted to Nemoism.
Originally reviewed on nemoequipment.com
April 26, 2024
Leg room!
I’ve had the same Kelty mummy bag for 12 years and thought I’d never have to buy another sleeping bag again. I’m a side sleeper and the spoon shape was such an easy sell for me. I love my old bag but the Nemo RIFF is just so roomy I never want to sleep in a regular mummy bag ever again! The venting gills are a realistic feature that I’m happy made it to the final product. 10/10 love this bag!
Originally reviewed on nemoequipment.com
April 26, 2024
Couldn’t be happier
Ordered this bag ahead of a Colorado elk hunt last fall and I was super impressed with the weight to warmth ratio and just how comfy this bag is. Since that trip I’ve used this bag for bike packing trips and several backpacking adventures and I continue to love this bag more and more. I’m a side sleeper so the spoon shape of the riff is a really a nice feature. If you who feel trapped inside of a regular mummy bag, give the riff a shot. I can’t recommend this bag enough and plan on using it for many many years to come.
Originally reviewed on nemoequipment.com
Do you have a question about this product?
June 7, 2021
I have a Riff 15 long. Which insulated sleeping pad best fits inside of it?
Originally reviewed on nemoequipment.com
May 20, 2021
I'm 5'11 and I don't like when sleeping pads are too short. I like to have more space than usual. Should I take the long size or is the regular one ok? I'm also hesitating cause of the geat regular specs (better compression and weight). Thanks!
Originally reviewed on nemoequipment.com
April 5, 2021
I have a men’s Riff bag, will the women’s Disco bag zip together with it?
Originally reviewed on nemoequipment.com
March 18, 2021
Hi. Do the Riff 15 and the Disco have baffle construction? I have a Disco I bought in 2019 & the down is now very thin in the waist area while the foot box has lots of down - wondering if that has shifted and if Riff will too?
Originally reviewed on nemoequipment.com
December 19, 2020
Is this a comfort rating or survival rating of 15°
Originally reviewed on nemoequipment.com
November 7, 2020
I am looking at the Riff 15 mens sleeping beg . Which of the different Fillos fits integrated pillow pocket ? The Fillos have different dimensions .
Originally reviewed on nemoequipment.com
September 22, 2020
i'm looking for a bag to hike the AT with next year. I will be going southbound, so towards the end of my trip, a 15 degree bag may be needed. i'm wondering if the bag gets wet/soaked, will it still keep you warm ?
Originally reviewed on nemoequipment.com
September 7, 2020
Hi, is it filled with duck down or goose down?
Originally reviewed on nemoequipment.com
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