Kelty  Cosmic 20 Sleeping Bag - Men's

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Sleep snug and sound on subfreezing fall nights in the men's Kelty Cosmic 20 sleeping bag. It features soft-as-silk nylon taffeta fabric and a handy stash pocket for your headlamp.

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Features

  • 600-fill-power DriDown™ and durable water repellent (DWR) treatment are PFC-free
  • 20-denier nylon taffeta shell is soft yet durable
  • 50-denier polyester taffeta lining feels like satin sheets on your skin
  • Dual-sliding, locking 60 in. zipper features an antisnag design
  • Draft collar and comfortable hood help keep the cold out and the heat in
  • Stuff sack included

Imported.

Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View the Kelty Cosmic Product LineView all Kelty Backpacking Sleeping Bags

Technical Specs

Best Use

Backpacking

Tested Lower Limit

19 degrees (F) - ISO

Tested Comfort

30 degrees (F) - ISO

Temperature Rating (F)

19 degrees (F)

Temperature Rating (C)

-7 degrees (C)

Shell

20-denier nylon taffeta

Zipper Location

Right

Insulation Type

Down

Water-Resistant Down

Yes

Fill

600-fill-power DriDown

Fill Weight

Unavailable

Lining

50-denier polyester taffeta

Sleeping Bag Shape

Mummy

Compressed Volume

Unavailable

Gender

Men's

Reviews
23 reviews with an average rating of 4.2 out of 5 stars

76% 13 of 17 reviewers recommended

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Average Ease of Use

Difficult to useVery easy to use

Average Product Weight

LightweightHeavy

Most Helpful Favorable Review

57 people found this review helpful
5 reviews with an average rating of 4.0 out of 5 stars
6 years ago
Good sleeping bag with a few downsides.
First of all: this is a good sleeping bag. It does what it needs to do. However, there are a few small quirks about it that I feel you need to be aware of before you buy it. 1. Although the down and liner material itself is comfortable, the stitching on this bag uses a slightly stiffer thread that raises a ridge, which can be a little annoying against bare skin (i.e. if you're wearing shorts and t-shirt to sleep in). I can see this becoming a pet peeve if I had to sleep in this bag for weeks on end. 2. The drawstring closure on the hood uses a rather thin cord without a lot of stretch to it. The upper part of the drawstring is covered by the hood, but the lower part relies on the draft collar to stop the string from rubbing against your face in an irritating manner when closed up. 3. When you consider the cost (which is outstanding compared to the competition!), keep in mind that this sleeping bag does not include a compressing stuff sack or a long-term storage sack. A proper compression stuff sack and a long-term storage sack cost 20 dollars each, so add that into the cost if you're the type that needs those thing. Given the type of camping I do, the included stuff sack is fine, and I'm using a heavy-duty trash bag for long-term storage for now. Conclusion: Good sleeping bag with a few downsides. I'd definitely upgrade if I were going to be doing longer trips, but as a mostly weekend camper who does some light walk-ins and the occasional three-to-four night hike-in, it's fine.
Albert

Most Helpful Critical Review

39 people found this review helpful
5 reviews with an average rating of 3.0 out of 5 stars
6 years ago
great bag, un-washable
Amazing bag but this is second time I have tried washing it (following EVERY step of directions) and it has come out smelling like death
anrubin
Matt
Location:New Hampshire
Age:45–54
Weight:225–250 lbs.
Height:6'1"
Rated 5.0 out of 5 stars
5 years ago

Perfectly comfortable into the low 30's

I purchased this for my first camping trip in nearly 30 years. We went on a 4 day kayak camping trip to lake Umbagog in northern NH where it got into the mid 30's at night. I did not want to be cold. I was quite comfortable all night... if anything, I was warm since I was wearing a long leg / sleeve base layer and using a bag liner. Did I mention that I did not want to be cold? I could have foregone the liner and long johns and been perfectly comfortable all night. I bought the "long" version which was the perfect height... no pulling at the bottom or top. It's a reasonable weight to performance ratio and is easy on the wallet.

Age:45–54
Weight:225–250 lbs.
Height:6'1"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
RichAllcorn
Location:Austin, TX
Rated 5.0 out of 5 stars
6 years ago

I simply "love" this sleeping bag!

I really wanted the "Never Summer" but after comparing the two, this one packs sooooo much smaller, and is extremely comfortable! I love the fit, the outside pocket to keep my iPhone in, and the way it will pack sooooo small. I use a compression sack that it barely just fits in, then compress it, and slip "that" into an all-weather sack to protect it from the elements. I plastic bag around that before going into the all-weather protection sack ensures that it won't get wet! I'd buy it again!

JM37
Location:NYC
Weight:200–225 lbs.
Height:6'1"
Rated 5.0 out of 5 stars
5 years ago

A Great Dri-down Sleeping Bag at a Great Price

An excellent bag for the price. It's 80/20 down/nylon fill is an upgrade. The complants are understandable, but the nylon is in the bags bottom baffles where down gets compressed and loses insulation. The 80/20 fill also shaves off weight. Numerous new down bags are going the same route by putting more down on the top of the bag, expecting the sleeping pad to insulate your body on the bag's bottom. If you are a beginner backpacker, or if you want to save money but get the comfort and compressability of down, this is the bag.

Weight:200–225 lbs.
Height:6'1"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Oldmanhiker
Rated 4.0 out of 5 stars
5 years ago

Great bag for the price!

I have used this sleeping bag on several AT section hikes/backpacking trips and Pisgah NF/wilderness trips. The temperature rating is accurate. If you're an ultralight fanatic this bag won't be for you, but I'll carry the extra pound and save a couple of hundred $$$. Highly satisfied!

Gravy
Location:Greenville, SC
Age:18–24
Weight:150–175 lbs.
Height:5'9"
Rated 5.0 out of 5 stars
4 years ago

Comfy and fluffy

I love this sleeping bag! It super comfortable and very quick to set out. It retains heat very well, and offers moderate ventilation. There is a fine line between comfortable and starting to sweat, so prepare to lose layers if its above 40 degrees. I took this on the Art Loeb Trail in August and worked very well! The zipper does snag, but it doesn't get stuck. The footbox has a good amount of space and I even had room to sleep on my side. P.S. The bag does not come with a compression sac, but it fits like a glove in a Sea to Summit Medium (14L) dry compression sac.

Age:18–24
Weight:150–175 lbs.
Height:5'9"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
DeeDee
Rated 5.0 out of 5 stars
6 years ago

So cozy

Love this! I’m a 5’5” woman who needs lots of space to move around when I sleep, so this totally fits the bill. I thought it might be too cool, but so far it’s been perfectly warm.

Albert
Rated 4.0 out of 5 stars
6 years ago

Good sleeping bag with a few downsides.

First of all: this is a good sleeping bag. It does what it needs to do. However, there are a few small quirks about it that I feel you need to be aware of before you buy it. 1. Although the down and liner material itself is comfortable, the stitching on this bag uses a slightly stiffer thread that raises a ridge, which can be a little annoying against bare skin (i.e. if you're wearing shorts and t-shirt to sleep in). I can see this becoming a pet peeve if I had to sleep in this bag for weeks on end. 2. The drawstring closure on the hood uses a rather thin cord without a lot of stretch to it. The upper part of the drawstring is covered by the hood, but the lower part relies on the draft collar to stop the string from rubbing against your face in an irritating manner when closed up. 3. When you consider the cost (which is outstanding compared to the competition!), keep in mind that this sleeping bag does not include a compressing stuff sack or a long-term storage sack. A proper compression stuff sack and a long-term storage sack cost 20 dollars each, so add that into the cost if you're the type that needs those thing. Given the type of camping I do, the included stuff sack is fine, and I'm using a heavy-duty trash bag for long-term storage for now. Conclusion: Good sleeping bag with a few downsides. I'd definitely upgrade if I were going to be doing longer trips, but as a mostly weekend camper who does some light walk-ins and the occasional three-to-four night hike-in, it's fine.

Nick
Location:Fairfax, VA
Age:25–34
Weight:175–200 lbs.
Height:6'3"
Rated 5.0 out of 5 stars
5 years ago

Warm and comfy bag at a great price!

This was my first nice sleeping bag I’ve owned and came as a recommendation from a friend. I took it out on a night that got into the mid 30s and felt super warm. I paired it with the stratus sleeping pad from REI and it was great! No issues. I am a warm sleeper so that may sway my bias a little. I got this since I think I will want to venture into backpacking and it’s light enough to use. The outer lining is softer than the inner which I don’t understand but it’s not a huge issue. Overall really warm and comfortable bag!

Age:25–34
Weight:175–200 lbs.
Height:6'3"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
Pierre
Location:California
Rated 2.0 out of 5 stars
5 years ago

Inaccurate product description

The fill is 80% Down and 20% Poly fill, it doesn't feel like a down bag, and it doesn't compress like a down bag. This is mentioned nowhere in the description, I ended up buying another bag that was actually down fill. I will be returning this bag. If the listing accurately described the product it would probably get more stars. I'm only rating it low because i expected a down bag.

Scott Minneapolis
Location:Utah
Age:55–64
Weight:175–200 lbs.
Height:5'4"
Rated 5.0 out of 5 stars
5 years ago

Great bag!

This sleeping bag is really comfortable and reasonably warm. Plenty warm for me, that is. If some one needs more warmth, it would easily double with another sleeping bag. Or, one could use with a blanket easily It packs very small and light. I use compression sack, and it is smaller than a soccer ball.

Age:55–64
Weight:175–200 lbs.
Height:5'4"

Ease of Use

Difficult to useVery easy to use

Product Weight

LightweightHeavy
1 - 10 of 23 Reviews

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