🛶 Sleep Warm, Tread Light: The Cosmic 20 is your eco-friendly passport to next-level backpacking comfort.
The Kelty Cosmic 20 Down Mummy Sleeping Bag combines 550 fill power ethically sourced down with recycled shell and liner fabrics treated with PFAS-free durable water repellent. Designed for 3-season backpacking, it offers a temperature rating down to 21°F, lightweight portability at just over 2 lbs, and comes in three sizes to fit adventurers up to 6'6". With a heritage rooted in Colorado since 1952 and backed by a limited lifetime warranty, this sleeping bag delivers sustainable warmth and trusted performance for the modern outdoor enthusiast.
| Brand | Kelty |
| Color | Dark Blue |
| Occupancy | 1 Person |
| Shape | Mummy |
| Seasons | 3 Seasons |
| Temperature Rating | 20 Degrees |
| Age Range (Description) | Adult |
| Sport | Camping & Hiking, Backpacking |
| Special Feature | RDS Certified Down, Highly Compressible and Lightweight, Recycled Shell + Liner Fabrics |
| Material | PFC-free DWR, [shell] 20D nylon |
| Fill Material | Down |
| Product Dimensions | 78"L x 30"W |
| Closure Type | Zipper |
| Outer Material | Recycled 20D Nylon Taffeta |
| Fabric Type | Recycled Nylon and Recycled Polyester Taffeta |
| Size | Regular |
| Maximum Height Recommendation | 72 Inches |
| UPC | 727880887513 |
| Item Package Dimensions L x W x H | 12.5 x 8 x 7.5 inches |
| Package Weight | 1.16 Kilograms |
| Item Dimensions LxWxH | 78 x 30 x 3 inches |
| Brand Name | Kelty |
| Warranty Description | Kelty Limited Lifetime Waranty |
| Model Name | Cosmic Down Mummy |
| Suggested Users | unisex-adult |
| Manufacturer | Kelty |
| Part Number | 35413724RR |
| Model Year | 2024 |
| Style | Updated Version |
| Included Components | Kelty Cosmic 20 Sleeping Bag, Kelty Limited Lifetime Warranty, Stuff Sack |
| Fill Material Type | Down |
C**N
Good product value for cost.
This bag replaced a 40 year old North Face bag of equal temp. Only had it a few days but is really warm. Our Summers are short and our low yesterday July 5th was 38F. I use these cool lows to cool our home and cover myself in this bag to stay warm. Great bag for the price.
T**R
Excellent lightweight, durable, and warm sleeping bag
Great bag, very warm, very lightweight. Also, bonus points for durability because it holds up to my 60lb pitbull trying to bury himself inside with me when its cold!
J**J
warm and comfy
i got this to take backpacking in cooler weather and it works great. it is super comfortable and cozy. it kept me warm in 32* nights.
A**R
Good bag. No complaints
Awesome bag. I’m 6’4” and 320 and it’s definitely tight but it will keep you warm around 20 degrees. I typically get hot when I sleep so I guess ff you don’t then you’ll probably want a 15 or zero degree bag. It packs down pretty small which is great for multiple day trips when I need to pack lots of other stuff
T**E
Cozy sleep
Excellent quality materials, construction and shape to assure an air tight fit when properly closed. Great double zipper that’s easily zips from the outside or the inside of the bag (when your arms are basicly zipped inside the bag for warmth.). And boy does your body warm up quickly when properly zipped in this down bag—even on windy, frigidly cold mornings. Impressed, in my mind, would be an understatement!
W**E
Warm but tight
Really keeps you warm, but pretty tight on shoulders if you've worked out a little.
J**E
super cozy!
loved it - keeps me warm!
K**R
Great cozy sleeping bag
Love this sleeping bag! I found it super cozy and light enough to backpack with. It is a bit bulky to fit in a backpack, but I made it work in a 43L pack. The zippers seem high quality and I was warm all night as it dipped into the low 40s with some wind. Highly recommend!
Trustpilot
1 week ago
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