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1 new from $184.00

Kelty Cosmic 20 Degree Down Sleeping Bag

by Kelty
173 customer reviews
| 15 answered questions

Available from these sellers.
6-Feet 6-Inch Size Chart
  • 550-fill-power duck down insulation provides exceptional warmth and light weight
  • Mummy style Sleeping Bag with baffle construction with differential cut eliminates cold spots; inner layer is cut smaller than the outer layer to create consistent thickness of insulation
  • Tempature Range: 20 Degrees F / -7 Degrees Celsius
  • Fill: 550 Down Insulation
  • Regular Fits 6', Long Fits 6'6, X-Large Fits 6'6
  • Stuff Sack Included
1 new from $184.00
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Technical Details

Product Description

Snuggle into the Cosmic 20º Down Sleeping Bag and snooze. This 3-season bag offers great value for the investment, and the 550 Fill-Down means low-weight but high warmth so you will be comfortable even from cool spring nights through the brisk fall nights. The Cosmic Down 20 retains warmth exceptionally well by utilizing an insulated draft tube with anti-snag design, an efficient, form-fitting hood, and top draft collar. Box-baffle construction, ground level seams, and differential cut maximizes the warmth of the bag and eliminates cold spots. The 58" dual slider zipper makes it easy to get into out of the bag. Once inside, adjustment of the hood is easy to do with the captured cord lock and Fatman and Ribbon(tm) draw cords, which have distinctive feel so you can determine which cord controls the top and bottom of the hood while dark. Finally, the internal liner loops can hold your liner in place while you sleep and the sleeping pad security loops will keep you on your pad (straps sold separately).

Kelty has adopted the European Norm (EN) 13537 test process which provides a standardized comparison method for all sleeping bag brands so that it is easier for you to choose the right sleeping bag for your needs. The two temperature ratings listed are "Comfort" and "Lower Limit." Comfort is defined as the temperature that a standard woman (132lbs / 60kg) will be comfortable at versus lower limit which is the temperature that a standard man (176lbs / 80kg) will be comfortable at. For the Cosmic Down 20, the EN tested Lower Limit is 21F / -6C and the EN tested Comfort Limit is 32F / 0C. Everyone varies in how they sleep, so the temperature rating is only a guide and you may experience being warmer or colder depending on your set of circumstances.

Product Details

  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B004O76YS2
  • Item model number: 35413611
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (173 customer reviews)
  • Amazon Best Sellers Rank: #160,241 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

Customer Reviews

Most Helpful Customer Reviews

127 of 130 people found the following review helpful By Old Guy on January 8, 2012
Size: ShortColor: Macaw Green Verified Purchase
I feel badly when you pry out of a kid that they were cold last night. Sure, they might not complain much, but it doesn't seem quite fair when you were warm and they weren't. Back packing is supposed to be fun, and it's not fun when you're cold. When I saw these bags - even at full price, I figured they were worth a try.

I got two of them. A short, fishing-lure-looking thing for my eleven year old daughter, and a regular-size green one for my thirteen year old son. I couldn't be more pleased. They are well made, and appear durrable. My wife, at 5'6" fits in the short just fine. I, at 6'1'', am a rather snug fit in in the regular. So far the feathers don't leak. My kids give them a thumbs up. They slept in them at 20 degrees. The daughter said her bottom half was a little cold, but not bad. The son said he slept a little cool. One door and they could have been in their own warm beds. They slept soundly (I checked on them through the night). They looked quite comfortable. We had to wake the daughter up at 9:AM. FYI, 20 degrees bare foot, and in a bathrobe is COLD! These bags should be very comfortable at 30 degrees, their "comfort" rating. The bag compresses well. For the money, this is a super value.

In reading other reviews I note a complaint that you can see light through the bag, or hollow spots, without apparent feathers. This is not a flaw, it's a down bag. Shake the bag thourally to fluff it up and distribute the feathers. You will still see light through the bag - that's OK. Another complaint I see is that the bag smells - like duck feathers. It does; and says duck down right on the tag. This is NOT a $200 goose down bag. It's no big deal. It's a camping smell that says "You're going to be warm tonight". If that bothers you, spend more money, and don't go near the camp fire; by comparison, that really stinks.

Old Guy
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46 of 47 people found the following review helpful By Robin L. Smith on December 19, 2012
Yes, it's an entry level down bag (duck down, not goose, and it is packed accordingly), but a great bag. Like with most manufacturer's cold rating, it's best to figure at least a ten degree variance. Because most people do not adequately insulate themselves from the ground, consider adding another ten to the rating variance, and you shouldn't have any surprises. So purchase a bag that is rated twenty degrees colder than you ever expect to be in. Also, it's not a magic bag, and you aren't forking over hundreds of dollars, so use common sense in dressing for bed. You can always adjust as needed. However, do not make it your plan to sweat, either! Enough moisture, and the next time you wake up, it will be from the cold. Sleep warm, but not hot!

The little loops on the bag are to connect to your sleep pad if desired. One reviewer was unsure.

Not sure why someone would think the baffle is too small?

A couple of people said the zipper could be difficult to operate, but having a good zipper baffle, you just need to watch what you are doing. I have found nothing wrong with the zipper at all. (And it does have a double ended zipper.)

Yes, you can side sleep in it with your legs pulled up.

No, it is not water proof, nor are there claims that it is. Down + water = a very long and cold night! Dry it out thoroughly after a night's use. Hang it on a branch while eating breakfast. Twenty minutes should be long enough.

When you get your bag, take it out of the stuff sack, and shake it out. This will loft it up. While it seems to be thin when first out of the bag, prepare to be amazed at the power of down! (It's almost magic!
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31 of 35 people found the following review helpful By Chris Griffith on August 7, 2012
Size: RegularColor: Macaw Green Verified Purchase
So I had previously ordered a synthetic bag. When that bag showed up it was GIANT, definitely for car camping. I ponied up a few extra bucks and found this down bag and when it showed up I was giddy. I believe on their site it lists its stuffed size as 8x13. Honestly, it might be smaller. You could certainly get a compression bag and make it smaller. I pulled the bag out and within minutes it had fluffed up to almost its maximum height. I got in and zipped it up to make sure I fit. I'm a little over 6-1 if I stand REALLY straight, and I definitely just barely fit in this bag (Regular sized). If I put the hoody on it can be a little straining on my neck if I don't push my feet all the way to the bottom of the bag. I'm really excited to try this bag out on a cold night, if it doesn't stand up to the test, I'll add to my review.

Here are some tips I have learned while researching this bag:
-Don't leave it in the stuff sack it comes in. If you store a down bag in a stuff sack, it will loose it's fluff much faster, thus loosing it's warmth. I put mine in a pillow case, but something a little larger than that and breathable would be recommended.
-The regular size is definitely made for people who are exactly 6 ft tall. If you are taller, strongly consider getting the larger bag.
-Don't get it wet. Down bags lose their heating properties when wet.
-Don't let your cats near it. Mine punched a whole in the stuff sack within 2 minutes of me opening the package :(
-Use a sleeping pad and wear long jons, socks, and a hat. Sleeping bags are rated for comfortability while using all of these, not while sleeping shirtless on the ground.
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