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Cosmic 20 Sleeping Bag: 20F Down

3.5 out of 5 stars
2 Reviews
$149.95 - $179.95
Color:Dark Blue/Pageant Blue/Olive Oil



Why We Like The Kelty Cosmic 20 Sleeping Bag

The Kelty Cosmic 20 Sleeping Bag allows us to get out on early spring camping trips and sneak away to backpack late into the fall. The bag is packed with 550-fill goose down and utilizes innovative trapezoidal baffles to trap heat and keep us warm and cozy all night. The internal stash pocket keeps our headlamp and phone close, and more importantly warm, so we don't lose too much battery on cold nights. The dual slider design easily ventilates so we can stay comfortable while we sleep, and the spacious footbox provides room for our toes to wiggle while we snooze.


  • Three-season sleeping bag for getting our beauty sleep
  • 550-fill goose down provides light, lofty warmth
  • Trapezoidal baffle construction optimizes heat retention
  • PFC-free DWR treatment sheds light moisture so we stay cozy
  • Natural-fit foot box gives our feet room to move
  • Zippered internal stash pocket allows us to keep track of our phone
  • Dual sliding zippers allow us to find the perfect amount of ventilation
  • Included stuff sack allows us to wake up and quickly hit the trail
  • Item #KELO0CO
[shell] 20D nylon, PFC-free DWR, [lining] 50D polyester
550-fill duck down
Max User Height
[short] 5ft 6in, [regular] 6ft, [long] 6ft 7in
Shoulder Circumference
[short] 58.5in, [regular] 62in, [long] 64in
Hip Circumference
[short] 56in, [regular] 58in, [long] 60in
Foot Circumference
[short] 38in, [regular] 40in, [long] 42in
Bag Length
[short] 72in, [regular] 78in, [long] 84in
Draft Tube
1 zippered internal stash
dual zipper
Fill Weight
[short] 14.6oz, [regular] 1lb 0.3oz, [long] 1lb 2.8oz
European Norm/ISO Comfort Rating
European Norm/ISO Lower Limit Rating
Stuff Sack
Stuff Size
[short] 7 x 13in, [regular] 9 x 13in, [long] 8 x 14in
Claimed Weight
[short] 2lb 5.4oz, [regular] 2lb 8.3oz, [long] 2lb 12.4oz
hike & camp
Manufacturer Warranty
limited lifetime

Overall Rating

3.5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 1 reviews

Fits Slightly Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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2 out of 5 stars

April 8, 2024


I've used it several times
Size Bought:

I was optimistic about the update to this bag, but it fell short. The bag was well constructed, but the two main issues with the bag were, shoulder width and temp rating. I was looking for a bag that could handle between 20-30F. Camping with a low of 32F, the bag did not keep me warm and I tend to sleep warm. I am average size and the bag tightly locks in on my shoulders. I am returning the bag.

Deren D
5 out of 5 stars

March 1, 2024

Light weight and Warm

I've used it once or twice and have initial impressions
Size Bought:

Got this new sleeping bag in and it was warm and roomy. I'm 6ft tall and got the regular size bag and there is room for me. Didn't feel the need to get the long version. Zipper is pretty smooth. Still getting used to the draw stings on the hood, struggling a little to tighten and loosen the hood while the bag is zipped all the way up and I'm in it. But I'll figure it out. For the money, you cant get better than this bag. It came in around 2.6/2.7 lbs.

Doug E