The Kelty Cosmic 20 Degree sleeping bag is ideal for 3-season backpacking and camping. Lightweight, hydrophobic DriDown fill and an array of features make the affordable sleeping bag a real bargain.
The Cosmic 20 Degree sleeping bag is insulated with 600-fill power DriDown. Renowned for their efficiency in retaining heat and compressible properties, the feathers and fibers of down have an incredibly soft, comfortable feel, and despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one inherent weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet, but the DriDown featured in the Cosmic 20 Degree bag performs differently. Employing a unique, innovative polymer application, DriDown actually creates a hydrophobic finish on each individual plume of down. This treatment results in insulation that stays dry longer and dries faster, should it become wet, than that in bags with untreated down.
Baffled construction eliminates cold spots, keeping outside air from reaching the interior of the bag. A draft tube behind the 60" two-way locking zipper, a fully-insulated draft collar, and a contoured hood with an insulated hood baffle further enhance the thermal efficiency of the Cosmic 20 Degree bag. The hood utilizes Kelty's patented FatMan and Ribbon drawcords, allowing you to adjust the top or lower sections of the hood by feel even when it's dark outside. A polyester taffeta liner provides internal comfort.
The Kelty Cosmic 20 Degree sleeping bag is available in Short (fits up to 5’ 6”), Regular (up to 6' 0"), and Long (up to 6' 6") lengths. Each Cosmic 20 Degree bag includes a stuff sack.
California residents: view proposition 65 WARNING
- 50D polyester taffeta liner
- 50D polyester taffeta shell
- 600 fill power DriDown
- 60 inch dual-slider with locking zipper
- FatMan and Ribbon draw cords
- Full draft collar
- Quilt through construction
- Stuff sack included
- Thermal-comfort hood and natural fit footbox
- Zipper draft tube with antisnag design
Best Use Backpacking, Camping Insulation Type Down Item Weight Short: 2 lbs 6 oz
Regular: 2 lbs 9 oz
Long: 2 lbs 13 oz
Other Stuff Sack included Warranty Limited Lifetime Packed Size Short: 8" x 13"
Regular: 8" x 14"
Long: 8" x 14"
Shell Material 50D Down Proof Polyester Liner Material 50D Polyester Taffeta Fits to Length Short: 5' 6"
Regular: 6' 0"
Long: 6' 6"
Fill Material 600 Fill DriDown Temperature Rating 20 Degrees F
Real Customer Reviews
- Good warm bag that does not weigh much
Likes: Does not weigh much and keeps you very warm
Dislikes: Did not come with a storage bag only a compression bag
- Finally slept comfortably!
Likes: I tend to be cold at night and this bag did the trick for me. It was around 32 degrees and I was comfy. Seems well-made. My brother has had his for a few years and still loves it. I paired it with an eVent Compression Dry Sack (size medium is perfect, with just a bit of extra room for spare socks or outfit). The compression sack probably reduces its volume by about 30%, so not critical for everyone, unless keeping the bag dry is also important to you! In my research, I decided I'd have to spend almost twice the price to get a noticeable improvement in weight or size. This bag hits the right mark for me (I backpack or bikepack a few times a year for a couple of nights each trip).
Dislikes: The way the zipper terminates at the top seems a little odd, with a couple of flaps that don't quite overlap like I would expect. Definitely not a big deal though.
- Quality down tent on a budget
Dislikes: -Could pack better
Likes: I own a 6 degree bag by Kelty and was looking for something lighter in weight, which this one is. I thought this was going to work for me, but a week long sheep hunt in Colorado proved different. It got down to the mid 30’s every night and I had to wear everything I brought. I even ended up wrapping the foot box with my rain jacket.
The bag was long enough for my 6’ frame and if I didn’t have to wear all that I did would have been wide enough.
Also the zipper caught every time and made it very frustrating getting in and out. I ended up returning it and getting a refund.
Dislikes: Cold spots, zipper catches.
- 20 degree bag??
Likes: Lightweight, have always been a Kelty guy.
Dislikes: I returned the bag after 1 night of use. This should be rated as a 35 degree bag. Up at 5000 ft last month in the North Cascades it got down to 30-35 and I was not warm in this bag.
Likes: Warm, light, good amount of sleeping room.
- Great value down bag
Likes: Down bag on a budget? You can't beat this deal. Of course, I would love a 1 lb minimalist 800 fil down quilt but who wants to spend $400+. With comfy merino wool base layer pj's and an insulated pad, this will do the trick for a fraction of the cost. Very comfy.
Dislikes: Grab yourself a compression sack. You can definitely get this smaller. and you can grab a mesh bag for storage at Big 5 for 7 bucks.
- Roomy and Well Constructed
Likes: I am 5' 11" tall and weigh 180 lbs. The KELTY COSMIC 20 DEGREE SLEEPING BAG has plenty of room for me. The outer shell is a heavier weight fabric than my other 25 degree bag, but according to specs it's only 3 oz. heavier overall. The construction and workmanship is very good. I agree that the bag is a good value.
- Great Budget Down Bag
Likes: The extra room is great. I can actually put a sleeping pad inside the bag adding to the warmth. Much roomier than most mummy bags. I use a klymit static v and I weigh 200 and can zip it up no problem.
Dislikes: The zipper works but is a challenge. It gets caught and will need to practice it. May be too roomy for smaller guys.
- Not sure how I could have done better.
Likes: Warm. Quality construction. Looks great. I bought the large and glad I did since I can roll my body inside when zipped for side sleeping. I'm 5'-10" and think the medium would have been too small for my liking. Stuffs nicely in included sack into size not much larger than my companions strapped compression bagging of a more expensive bag. Used in a recent 3-day hike in Rocky Mountain National Park and it was perfect for the nights at 10k to 11k feet elevation in late July early August.
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