Free 2-Day Shipping on all orders over $50* | See all Christmas Ordering Cutoffs


Toasty down insulation for cold-weather escapes.

You're an outdoor fanatic, which means that it's hard to spend an entire season sleeping indoors. Instead of succumbing to the awful boredom of sitcom reruns, grab the Kelty Cosmic 0-Degree Down Sleeping Bag, and ski to a secret backwoods yurt or head out to a cabin. Regardless of the venue, this cold-weather bag surrounds you with 550-fill down to lock in your body's heat without sapping your cocoa and schnapps budget.

  • EN lower limit rating of 4F means an adult man will sleep comfortably at this temperature
  • The slant baffle construction and ground-level side seams reduce heat loss throughout the night
  • An insulated draft collar, hood, and zipper draft tube further seal you off from the frigid air
  • External sleeping pad loops anchor you to your pad, which keeps you warm and comfortable despite the yurt's wooden floors
  • Internal loops let you insert a bag liner for further insulation against the winter temps
  • The 3/4-length, two-way locking zipper and drawcord tighten the bag around you so you can drift off into sleepville

Share your thoughts

What do you think of the

Kelty Cosmic Sleeping Bag: 0 Degree Down

? Share a...

Write a review

No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

  • Product review:
  • Share a video
  • Share a photo

How familiar are you with the product?(Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

5 5

Unbelievably awesome.

For this bag's price, it goes above and beyond expectations. I had three friends who had this bag and raved about it forever, so I finally bought one. It's the best sleeping bag that I have ever owned and I can't believe how little I paid for it. I recommend it to everyone I know who asks me about sleeping bags.

I am one of those people who is always cold, especially when I sleep. I've never been cold in this bag though. I've woken up in a crappy tent with frost on the outside of the bag and having it be a little bit wet, and I was toasty and warm all night. The worst part of this bag is getting out of it on cold mornings!

5 5


Love this sleeping bag! I was warm and comfy. I only needed to wear sweat pants and a fleece jacket with it.

Responded on

but what was the temperature outside?

Responded on

It was August in the mountains so I'd guesss the temps were in the 40s or 30s.

5 5

highly recommended.

love this bag. i havent used it in temps lower than 20 degrees as of yet, but the last time i used it, i was in the catskills and temps dropped down to the low 20's. it began to snow. i was using the bag in a lean-to with a thermarest scout sleeping pad, and a SOL thermolite 2.0 bivy. i woke up in the middle of the night at one point wet with sweat. looking forward to further testing but this year has been a pretty mild winter in the northeast. for the price, this bag is pretty unbeatable in my opinion. ill update further if i have any more issues.

5 5

Polkadot cocoon

This sleeping bag is great value for what it offers and costs. Down 550 fill and is not too heavy and has ties for stopping movement. Packs small if used in a stuff sack such as the Stoic large stuff sack. I am rather stocky and the regular was quite a snug fit. Will be taken to Everest basecamp trek so will tested.

4 5

Good enough for me

For the price, this is a pretty solid 0deg down bag. I haven't used it in any trying conditions yet, but for just camping around in colder climates, it has served me well. Nice and comfy and warm (a little too warm at times) and the long fits me pretty well (I'm 6'1"). Not the lightest or most compressible bag, but again, I haven't needed it for conditions where I'm shaving ounces or am pressed for space. If you need a cold weather bag, for fairly standard use, this is a good choice.

4 5

Great but a bit bulky and heavy

i slept really confortable on a 23 day trip to Peru doing trekking and mountaneering, we had all kinds of conditions from 40f nights all the way down to 5f in the high camps....

sometimes i slept only in boxers and the sleeping bag unzipped and still felt hot, but when temps droped below 10f i slept comfortably with a light long shirt and double socks cuz i tend to have cold feet
-- im 6'3 and its almost to tight

How water resistant is this bag?

How water resistant is this bag?

Responded on

No very water resistant. If you're looking for a bag that can handle a lot of moisture either go with an e-vent bag or synthetic insulation.