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  • Top panel features lightweight, warm 550-fill-power down; bottom, hood and side panels feature water-resistant synthetic fill
  • Relaxed mummy shape gives you a little extra room to spread out while you sleep
  • Face muffler and full draft tube keep out cold air
  • Differentiated draw cords (one round, one flat) let you adjust the hood and neck easily in the dark
  • Durable water repellent finish on the polyester shell resists moisture and stains
  • Included stuff sack compresses for packing; mesh expansion allows for breathable storage


Many sleeping bags are rated for temperature by an independent testing protocol, the European Norm (EN) 13537. Each bag gets two ratings: a Comfort rating and Lower Limit rating. The Comfort rating is the lowest temperature at which the bag will keep the average woman (or "cold sleeper") comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep an average man (or "warm sleeper") comfortable. Everyone's body and sleep comfort is different, so EN Ratings are merely a guideline to help you compare products.

View all REI Co-op Men's Sleeping Bags

REI membership


Best Use Camping
EN Lower Limit 17 degrees Fahrenheit
EN Comfort 28 degrees Fahrenheit
Temperature Rating (F) 20 degrees Fahrenheit
3 lbs. 7 oz.
3 lbs. 5 oz.
3 lbs. 1 oz.
Shell 50-denier ripstop polyester
Zipper Location Left
Insulation Type Down
Water-Resistant Down
Fill 550-fill duck down/synthetic
Fill Weight Unavailable
Lining Polyester taffeta
Sleeping Bag Shape Semirectangular
Fits Up To (in.)
78 inches
66 inches
Shoulder Girth (in.)
64 inches
62 inches
Hip Girth (in.)
60 inches
58 inches
Stuff Sack Size
10 x 11 inches
10 x 11
9 x 11 inches
Stuff Sack Volume
Compressed Volume
11.2 liters
9.9 liters
Gender Unisex

Our backpacking bags come in three fits.

This bag is relaxed.

REI Co-op brand sleeping bag fit guide


Narrow profile for more warmth and less weight.


Wider cut provides wiggle room while retaining warmth.


Roomy shape prioritizes comfort.

See specs for additional sizing information.

Illustration of three shapes of backpacking sleeping bags: fitted, regular and relaxed.
Rated 5 out of 5 by from Awesome Sleeping Bag I want to start by saying this is my first ever review and because I was so impressed with the product I figured I would give it a whirl. Bought this sleeping bag for a camping trip down to Big Bend National Park and am so happy I did! I'm ~5'7" 155lbs and have the regular size bag. Plenty of room to roll around, didn't keep my feet all cooped up, and very comfortable. Temps got down to the mid 40s at night and sleeping in shorts and a t-shirt I stayed plenty warm. Buddy of mine had a mammut sleeping bag rated for roughly the same temperature and when he woke up he said his feet were cold, mine were nice and cozy. I highly recommend this sleeping bag!
Date published: 2017-04-06
Rated 5 out of 5 by from Good value! Excellent bag for both car camping and backpacking. I've only used it down to about 30*F but I stayed plenty warm and appreciate the shoulder and head room. The bag seems durable and I like the hybrid stuffing!
Date published: 2017-03-14
Rated 5 out of 5 by from So comfy! This sleeping bag is comfy and very spacious. It isn't as claustrophobic as my other sleeping bags.
Date published: 2016-08-28
Rated 5 out of 5 by from Warm and Packs Well I took this out in 20 below weather and stayed very warm the whole night. Given, I was wearing quite a few layers, but I could have easily stayed warm without them. I also like how this bag comes with a pack that can be shrunk down to a pseudo-compression sack. It makes it easy to pack while camping but then allows you to let it expand when storing.
Date published: 2017-04-15
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Is this bag to large to be used for a backpacking trip?

Asked by: jluyben21
​This sleeping bag is a great choice for a backpacking trip.
Answered by: REIservice
Date published: 2017-03-15

What are the directions for cleaning? Can it be machine washed?

Asked by: UncleSpot
The Alpen Pod can be washed in a large front load washer. See the instruction in our Expert Advice about sleeping bag care:
Answered by: REIservice
Date published: 2017-04-09

I received this sleeping bag and love it but am confused as to how to use the half mesh stuff sack.  Is there a way to use the stuff sack so that all of the bag is inside of the non-mesh end of the stuff sack?

Asked by: Wildcat Wilderness Dude
To use the stuff sack without the mesh, stuff the mesh in the sack first, then stuff the bag in the sack.
Answered by: REIservice
Date published: 2017-03-08

Is the down in all sizes of the Alpen Pod water-resistant down? I notice that in the technical specs section, it mentions that it's water-resistant only for the long. I'm interested in buying the short, but only if it's water-resistant.

Asked by: Sam S
​Yes, the down in all the sizes is water-resistant.
Answered by: REIservice
Date published: 2017-04-05

If I want extra compression, what size compression bag would I get and how much smaller would it be?

Asked by: Gloelo
The 16 liter REI Co-op Lightweight Compression Stuff Sack is a great choice for this bag.
Answered by: REIservice
Date published: 2017-04-06

Is it possible to zip this bag to another REI bag to form a double sleeping bag?

Asked by: steven newberry
The Alpen Pod 17 Sleeping Bag cannot zip into another REI sleeping bag.
Answered by: REIservice
Date published: 2017-04-10

What would be the bag's dimensions when compressed?

Asked by: Katwinrad
​The Alpen Pod will compress to approximately 9" x 11".
Answered by: REIservice
Date published: 2017-03-19
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