Hands-on Gear Review

Compare sleeping bags for women ratings side-by-side >

Kelty Cosmic Down 20 - Women's Review


Sleeping Bags - Women's

  • Currently 3.2/5
Overall avg rating 3.2 of 5 based on 2 reviews. Most recent review: July 6, 2014
Street Price:   $150 | Compare prices at 2 resellers
Pros:  Inexpensive for a down bag, 2 diameters of drawcords on chin and hood
Cons:  Heavy, less compressible and less warm than competitors
Best Uses:  Car Camping, backpacking, child’s sleepovers
User Rating:     
  • 1
  • 2
  • 3
  • 4
  • 5
 (4.0 of 5) based on 1 reviews
Manufacturer:   Kelty
Review by: Jessica Haist ⋅ Review Editor, OutdoorGearLab ⋅ July 6, 2014  
The one word our testers would use to describe the Kelty Cosmic Down sleeping bag is "OK". This bag is just ok at everything. It is the least expensive down bag we tested, which makes it a good value for a budget conscious lady looking to purchase her first mummy-style down bag for a backpacking trip. It has low quality 550 fill duck down, that is heavier than would have liked. We discovered that the Cosmic Down incorporates synthetic materials into its neck baffle and draft tube, which also contributes to its weight and bulk.

During our testing period, we ran into a woman on the John Muir Trail who was using the Kelty Cosmic Down. We polled her for her opinion, and she said "so far so good, good value for the money."

Compare top rated competitors side-by-side >

  • Photos
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge
Click to enlarge

OutdoorGearLab Editors' Hands-on Review

Performance Comparison

Click to enlarge
The Cosmic Down is a relatively comfortable bag. Our 5'5 tester found it to fit her well, with room for wearing extra layers if needed.
Credit: Ian McEleney


The Kelty Cosmic Down bag is EN tested to 32°F. We did not experience temperatures that cold while testing this bag, but we don't think we would want to. We felt like this bag was just warm enough when the temperatures were approaching the low forties.


Although we tested heavier bags, the Cosmic Down is by far the heaviest of the down bags tested. We were disappointed by how heavy this bag is because one of the great advantages of down is its high warmth-to-weight ratio. The Cosmic Down is 2lbs 7.7 oz, and we hoped at this weight it would be warmer and have a higher fill power.


This bag is relatively comfortable. It fits our 5'5 tester well, and she has a enough room to put on additional layers without it feeling too restrictive.

Packed Size

This bag compresses relatively well because it is down, but does not compress as well as the other down bags we tested, like the REI Joule. It comes with a small stuff sack, but not a compression sack.


Making the Cosmic Down smaller and narrower is the only attempt that Kelty makes at a women's specific feature. The zipper seems low quality, and has a tendency to catch on the shell material. We like the different thicknesses of drawcords for the hood and chin baffle. so it is easy to tell them apart in the dark.


This bag is somewhat versatile. Paired with a high R-Value sleeping pa, it could be stretched from late spring to early fall use in warmer climates. But it is heavier than the other down sleeping bags we tested, such as the Rab Neutrino 400 - Women's and we would not want to carry this with us on extended backpacking trips.

Best Application

This inexpensive bag works best car camping, during sleepovers, and on short backpacking trips.


At $149.59 the price tag on this bag is hard to beat. It is a great value for a budget conscious camper who wants a down sleeping bag and needs a go-to bag for all of her camping needs.

Other Versions

Kelty Cosmic Down 0, $250.
Kelty Cosmic Synthetic 20, $105.
Kelty Cosmic Down 20, $189.
Kelty Cosmic Down 40, $130.
Kelty Cosmic Synthetic 35, $85.

Jessica Haist

Compare this product side-by-side to top competitors >

Where to Buy?

Thinking about buying some gear we've reviewed? Help OutdoorGearLab out if you do. Just click on any of the above seller links and if you make any purchase, the seller will contribute a portion of the sale to help support this site. It won't cost you anything extra, and it's a simple way to help us fund our gear reviews. Thanks!

*Most retailers free shipping offers apply only to lower 48 US states using ground/economy shipping. See retailer's website for details.

OutdoorGearLab Member Reviews

Most recent review: July 6, 2014
Summary of All Ratings

OutdoorGearLab Editors' Rating:   
  • 1
  • 2
  • 3
  • 4
  • 5
Average Customer Rating:   
  • 1
  • 2
  • 3
  • 4
  • 5

100% of 1 reviewers recommend it
Rating Distribution
2 Total Ratings
5 star: 0%  (0)
4 star: 50%  (1)
3 star: 50%  (1)
2 star: 0%  (0)
1 star: 0%  (0)
Sort 1 member reviews by: Most Recent | Most Helpful
Write a Review on this Gear

  • 1
  • 2
  • 3
  • 4
  • 5
   Jul 6, 2014 - 11:38am
Ollie · Backpacker · UK, Bristol
I bought this bag on the reviews of the internet, which seem to be very good. I wanted a down bag for the comfort and warmth without being too heavy, but I didn't want to break the bank! I'm from the UK and this bag cost me about £100 off the internet (as they aren't stocked in any stores here), which is about £100 cheaper than the cheapest of the other 3 season down sleeping bags that are stocked.
Having used this for a month's trip so far in the South West of England, almost every night camping, I'm very impressed with this bag! I don't think it's temperature rating is quite right, although it does say women sleep colder than men. On the coldest nights the temperature was about 9C (mid 50s) and at the coldest parts of those nights I had to put another layer on (I am a very cold sleeper however), but it's comfortable enough to to so. The best thing is that no matter what the weather so far my feet always stay toasty warm! Again, I'm a cold sleeper and my feet in a normal bed take hours to warm up (to the displeasure of my partner!), but within a few minutes of being in this bag my feet are warm and stay warm throughout the night.
Although it's perhaps not as warm as it advertises, I am very very happy with this bag! It's very comfortable, especially compared to synthetic bags. The neck baffle is lovely and big to tuck around your shoulders, and the pulls to tighten the chin and hood baffles are very easy to adjust (great when you're half asleep and too hot/cold). The zip does catch occasionally, but not enough to annoy. Because it does have a lot of down it moulds to your shape, and the down pools under me in the divots of my sleeping pad (klymit Static V) which adds insulation underneath.
I'd recommend this if you're looking for a down bag without breaking the bank. It really is comfortable and warm, and I think well worth the money! The only thing is if you wanted to use it in colder temperatures then you'd definitely need more layers, but if you're carrying them anyway then it's not a big deal. I can imagine it being a great 4 season bag with a warm liner.

Bottom Line: Yes, I would recommend this product to a friend.
Help other readers find the most helpful reviews
Was this review helpful to you? 

Have you used the Kelty Cosmic Down 20 - Women's?
Don't hold back. Share your viewpoint by posting a review with your thoughts...

Write a Review on this Gear
Click to enlarge
Kelty Cosmic Down 20 - Women's
Credit: Kelty
Where's the Best Price?
Seller Price
Backcountry $149.96  -  25% off!
CampSaver $149.96  -  25% off!
Compare prices at 2 sellers >

*Help support OutdoorGearLab. If you click on one of the seller links and make a purchase, a portion of the sale helps support this site
Helpful Buying Tips