- Online: www.REI.com
- URL for this product:
- From the U.S. and Canada — Call 1-800-426-4840
- Mon. through Sun., 4 a.m. through 11 p.m. PT.
- International — Call 1-253-891-2500
- Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
Kelty Cosmic Down +0 Sleeping Bag
This item is currently sold out or unavailable online.
Or, may we suggest shopping for similar items:
This page is provided for reference to historical product information.
- Show me:
- Product Description,
- Product Specs,
- Reviews
The Kelty Cosmic Down +0° sleeping bag provides exceptional warmth at a great price. It's perfect for winter backpacking and camping.
- Soft, high-loft 550-fill-power down insulation provides exceptional warmth and light weight
- Slant baffle construction with differential cut eliminates cold spots; inner layer is cut smaller than the outer layer to create consistent thickness of insulation
- Ground-level side seam keeps draft tube in place, further helping prevent cold air from seeping through the zipper
- Polyester creates a smooth yet durable shell; polyester taffeta lining breathes for comfort and feels great against skin
- Full baffle draft collar drapes comfortably over neck and shoulders, sealing out drafts
- Cozy hood has drawcords of differing widths at head and neck for easy identification and adjustment in the dark
- Draft tube backing 3/4-length, 2-way, locking zipper keeps cold air from seeping through
- Internal loops allow attachment of a sleeping bag liner, sold separately
- Pad loops provide attachment points to keep your sleeping bag and pad together, so you needn't worry about rolling onto the cold, hard ground (straps not included)
- Hang loops allow easy drying and storage
- Kelty Cosmic Down +0 sleeping bag comes with a stuff sack
Imported.
Item 807900
REI Membership
People Also Viewed
Marmot Cloudbreak 32 Sleeping Bag- Reduced to: $119.99 - $129.99
- Originally: $179.00
Sierra Designs Zissou 23 DriDown Sleeping Bag- Reduced to: $164.89 - $179.89
- Originally: $239.95
Big Agnes Cabin Creek +15 Sleeping Bag - Double- Reduced to: $199.99
- Originally: $269.95
| Specification |
| |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Best use |
| |||||||||||||||||||
| EN lower limit (rating for men) | ||||||||||||||||||||
| EN comfort (rating for women) | ||||||||||||||||||||
| Temperature rating (F) | ||||||||||||||||||||
| Temperature rating (C) | ||||||||||||||||||||
| Weight | ||||||||||||||||||||
| Weight - metric | ||||||||||||||||||||
| Shell | ||||||||||||||||||||
| Insulation type | ||||||||||||||||||||
| Fill | ||||||||||||||||||||
| Fill weight | ||||||||||||||||||||
| Lining | ||||||||||||||||||||
| Sleeping bag shape | ||||||||||||||||||||
| Fits up to (in.) | ||||||||||||||||||||
| Shoulder girth (in.) | ||||||||||||||||||||
| Hip girth (in.) | ||||||||||||||||||||
| Stuff sack size | ||||||||||||||||||||
| Stuff sack volume | ||||||||||||||||||||
| Gender |
Kelty Cosmic Down +0 Sleeping Bag Customer Reviews
REVIEW SNAPSHOT®
by PowerReviewsPros
- Comfortable (18)
- Lightweight (15)
- Warm (15)
- Adjustable hood (13)
- Packs small (13)
Cons
- Not water resistant (9)
- Zipper snags easily (6)
- Packs too large (4)
Best Uses
- Backpacking (16)
- Cold conditions (12)
- Year round (11)
- 3 season use (9)
- Car camping (5)
- Reviewer Profile:
- Avid adventurer (11), Casual/ recreational (6)
- What Is Your Gear Style:
- Comfort driven (11), Survivalist / minimalist (8)
- Was this a gift?:
- No (16)
Reviewed by 19 customers
Sort by
Displaying reviews 1-10
Previous | Next »
Pros
- Adjustable Hood
- Comfortable
- Durable
- Lightweight
- Roomy
- Warm
Cons
- Packs Too Large
Best Uses
- 4 Season camping
- Backpacking
- Cold Conditions
Comments about Kelty Cosmic Down +0 Sleeping Bag:
Amazing bag for the money, keeps plenty warm in mid 20's but havent been able to get any colder than that so far but seems to be able to handle it with ease. Great bag for the price! Very roomy and packs fairly small and seems durable so far.
- What Is Your Gear Style:
- Minimalist
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Durable
- Lightweight
- Packs Small
- Roomy
- Warm
Cons
Best Uses
- Backpacking
- Cold Conditions
Comments about Kelty Cosmic Down +0 Sleeping Bag:
I used this sleeping bag from Christmas to New Years where the weather didnt get above 15 degrees at night and slept very warm and comfortable . There was a lot of room inside for me and the next days clothes. I look forward to cold weather camping now .
- What Is Your Gear Style:
- Comfort Driven
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Packs Small
- Roomy
- Warm
Cons
- Shell Absorbs Water
- Zipper Snags Easily
Best Uses
- 4 Season camping
- Backpacking
- Car Camping
- Cold Conditions
Comments about Kelty Cosmic Down +0 Sleeping Bag:
I love this bag! Just after purchasing this Kelty bag as a replacement to a +20 bag, I went on a 4 night hiking/camping trip in upstate NY. The low temperatures for each night were respectively 20, 20, 15, 5 degrees. I was just as warm in this bag on 20degree nights as I was on the 5 degree night.
One bit of advise that I agree with from another reviewer is that the "long" bag was a much better buy than the "regular" length. I'm 72" 210lbs and fit the "long" bag with a comfortable amount of space left for warm water bottles or extra clothes if a cold night calls for them.
- What Is Your Gear Style:
- Comfort Driven
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Lightweight
- Packs Small
Cons
- Inaccurate Temp Rating
- Zipper Snags Easily
Best Uses
- 3 Season Camping
- 4 Season camping
- Backpacking
- Car Camping
- Cold Conditions
Comments about Kelty Cosmic Down +0 Sleeping Bag:
Kelty Cosmic down 0 degree sleeping bag
I used this sleeping back during my hiking trip this weekend. I was sleeping in a hammock with a small quilt underneath me. The Temperatures dropped down into the low 40s F and it started raining. Fortunately I had set up my dry fly rain tarp, and it kept me dry except for on little part of the bag.
The Good:
The bag kept me very warm, in-fact I had to strip down to my boxers to stay cool enough. My feet did get kind of chilly even though I had a pair of wool socks on. See the bad for more details. The material is very comfortable against my skin, and I really like the neck draft baffle. A small portion of the bag got wet during the night, but after I aired it out in the sun it dried out quickly. The bag packs very small, and with a compression sack fits without any problem into my 70L internal frame back pack sleeping bag compartment. I am 5ft 9inches and I am glad that I bough the long version of the bag.
The Bad:
The zipper is not the best quality that I have every seen, but it should do the job. Even though this bag is rated as a zero degree bag, I would not recommend taking it to those conditions. It seems like this bag does have some cold spots. The cinch for the hood on the mummy bag doesn't look very strong.
For the price, I think this bag was a good buy, but I don't think I would take it on a 0 deg camping trip
- What Is Your Gear Style:
- Comfort Driven
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Durable
- Lightweight
- Packs Small
- Roomy
- Warm
Cons
- Shell Absorbs Water
Best Uses
- 3 Season Camping
- Backpacking
- Car Camping
- Climbing
- Cold Conditions
Comments about Kelty Cosmic Down +0 Sleeping Bag:
I've come to the conclusion that whatever the comfort rating is add 25 degrees and you'll be right on. With this bag there were no cold spots. Love this sleeping bag it kept me warm in Northern Idaho this summer, and I hate being cold. I'm sure this would be a great 3 season sleeping bag. I will recommend this product to all my friends.
- What Is Your Gear Style:
- Comfort Driven
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Lightweight
- Packs Small
- Roomy
- Warm
Cons
- Shell Absorbs Water
Best Uses
- 4 Season camping
- Backpacking
Comments about Kelty Cosmic Down +0 Sleeping Bag:
I bought this sleeping bag in an effort to stay warm while sleeping in a hammock during a backpacking trip in the Uinta mountains. It met and exceeded my expectations. I did spend one night on the ground under the stars, and the bag absorbed a fair amount of dew, so it's not very water resistant. I wasn't surprised by this though, and it dried in the sun quite quickly.
- What Is Your Gear Style:
- Comfort Driven
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Durable
- Lightweight
- Packs Small
- Warm
Cons
- Too Small / Tight
- Zipper Snags Easily
Best Uses
- 3 Season Camping
- Backpacking
Comments about Kelty Cosmic Down +0 Sleeping Bag:
I have slept comfortably in 7 degree nights as in 53 degree nights in this bag and have yet to get cold. On warmer nights, above freezing, I leave the bag unzipped, if I don't I sweat, but I still do not get the slightest bit cold.
- What Is Your Gear Style:
- Minimalist
- Was this a gift?:
- Yes
Bottom Line Yes, I would recommend this to a friend
Images shared by The elevator
(2 of 2 customers found this review helpful)
Was this review helpful? Yes / No
- You may also flag this review
Pros
- Comfortable
- Lightweight
- Packs Small
- Warm
Cons
- Shell Absorbs Water
Best Uses
- 3 Season Camping
- 4 Season camping
- Backpacking
- Cold Conditions
- Hunting
Comments about Kelty Cosmic Down +0 Sleeping Bag:
Most recently used in October on 7 day hunt in Colorado. At 11200, temps got down to teens and single digits.
On night one, we had to quickly pitch tent on snow pack. Had very thin sleeping pad, stayed warm with plenty of room to move and adjust.
Packs away nicely, although i used a different compression sack. Bag got went a couple nights due to condensation but dried out in an hour with proper ventilation. For someone who gets cold feet, its nice to know when you turn in for the night you will stay warm. Cant beat what you get for the price.
- What Is Your Gear Style:
- Minimalist
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Durable
- Roomy
- Warm
Cons
- Heavy / Bulky
- Packs Too Large
Best Uses
- 4 Season camping
- Backpacking
- Cold Conditions
Comments about Kelty Cosmic Down +0 Sleeping Bag:
I was looking to replace a +20 synthetic, and go colder at the same time (a few nights in single digits tends to motivate).
For down filling and it's EN rating, this Kelty bag is an EXCELLENT value. It's very warm and all the features function well; the zipper is easy to use and snag resistant, the draft tubes and hood/collar cinches are great, no dead spots thanks to the offset baffles, and there's enough room for side sleepers. I'm 5'11 and the regular fit like a glove.
However, what's not listed on the specs is that the filling is duck down, not goose. Combined with the entry level 550 fill power and thicker fabrics than pricier bags, this leads to higher weight and lower compressibility overall. From testing in stores, I found most higher end 0 degree down bags to work with my current compression sack as good or better than the +20 synthetic. This Kelty seemed slightly harder to stuff, and a bit larger when compressed. It'd also be nice to have a pillow sleeve and internal storage pocket, but hey, they aren't essential and I'm not complaining at this price.
Ultimately, it's a great bag from a quality brand, well made, very warm, and much MUCH cheaper than others in the same class. Get it, unless you're counting grams or cc's.
I haven't had a chance to experience the water resistance like other reviewers, but I imagine some Nikwax Down Proof would help.
Oh, and I happen to like the color, by the way.
- What Is Your Gear Style:
- Minimalist
- Was this a gift?:
- No
Pros
- Adjustable Hood
- Comfortable
- Lightweight
- Packs Small
- Warm
Cons
Best Uses
- Backpacking
Comments about Kelty Cosmic Down +0 Sleeping Bag:
i have only slept in this bag at around 15 degrees, but i am possitive it will keep me warm at 0 too. i sleep with my head, chest and arms out of the bag and im still warm..shorts is the only thing i wear in my bag
- What Is Your Gear Style:
- Minimalist
Displaying reviews 1-10
Previous | Next »
How are we doing? Give us feedback on this page.
-
Camp & Hike
- GEAR
- Backpacks
- Bivy Sacks
- Camp Furniture
- Hammocks and Cots
- Sleeping Bags
- Sleeping Pads
- Stuff Sacks
- Tents & Shelters
- Water Bottles
- Water Treatment
- All Camp/Hike Gear
- GADGETS AND ELECTRONICS
- Binoculars
- Camp Tools
- Compasses
- Electronics
- Flashlights
- GPS
- Headlamps
- Knives
- Lanterns
- Radios
- All Gadgets and Electronics
- CAMP KITCHEN
- Coffee
- Cookware
- Coolers
- Cups and Mugs
- Food
- Plates and Bowls
- Stoves
- Tables
- Utensils
- Water Storage
- All Camp Kitchen
-
Climb
- CLIMBING GEAR
- Ascenders
- Belay/Rappel
- Carabiners
- Climbing Chalk
- Climbing Harnesses
- Climbing Helmets
- Climbing Holds
- Climbing Packs
- Crash Pads
- Rock Protection
- Pulleys
- Quickdraws
- Rock Climbing Shoes
- Ropes
- Caving and Canyoneering
- Webbing and Cord
- Slings and Runners
- Slacklines
- All Climbing Gear
- SNOW AND ICE
- Avalanche Safety
- Crampons
- Glacier Glasses
- Ice Axes
- Ice Tools
- Mountaineering Boots
- Snow and Ice Protection
- All Snow and Ice
-
Cycle
- BIKES
- Cruiser Bikes
- Comfort Bikes
- Folding Bikes
- Kids' Bikes
- Hybrid Bikes
- Mountain Bikes
- Road Bikes
- Urban Bikes
- All Bikes
- CLOTHING/HELMETS
- Cycling Gloves
- Cycling Helmets
- Cycling Jackets
- Cycling Jerseys
- Cycling Shoes
- Cycling Shorts
- Cycling Socks
- Cycling Tights & Pants
- Arm/Leg Warmers
- All Cycling Clothes
- BIKE ACCESSORIES
- Bike Computers
- Bike Lights
- Bike Locks
- Bike Pumps
- Bike Racks
- Bike Trailers
- Bike Trainers
- Hydration
- Panniers/Bike Bags
- All Bike Accessories
-
Fitness
- FITNESS CLOTHING
- Men's Running Clothing
- Men's Swimming
- Men's Triathlon Clothing
- Men's Yoga Clothing
- Women's Running Clothing
- Women's Swimming
- Women's Triathlon Clothing
- Women's Yoga Clothing
- All Fitness Clothing
- FITNESS FOOTWEAR
- Men's Cross-Training Shoes
- Men's Road-Running Shoes
- Men's Trail Running Shoes
- Women's Cross-Training Shoes
- Women's Road-Running Shoes
- Women's Trail Running Shoes
- All Fitness Footwear
- FITNESS GEAR
- Energy Food
- Exercise Equipment
- GPS Sports Watches
- Gym Bags
- Heart Rate Monitors
- Hydration
- Pedometers
- Running Packs
- Strollers
- All Fitness Gear
- FITNESS SHOPS
- Cycling Shop
- Running Shop
- Swimming Shop
- Triathlon Shop
- Yoga Shop
-
Run
- MEN'S RUNNING CLOTHES
- Men's Running Shirts
- Men's Running Shorts
- Men's Pants and Tights
- Men's Running Hats
- Men's Running Jackets
- Men's Running Socks
- Men's Running Gloves
- All Men's Running Clothes
- WOMEN'S RUNNING
- Women's Running Shirts
- Women's Running Shorts
- Women's Pants and Tights
- Women's Running Hats
- Women's Running Jackets
- Sports Bras
- Women's Running Socks
- Women's Running Gloves
- All Women's Running Clothes
- RUNNING SHOES
- Men's Cross-Training Shoes
- Men's Road Running Shoes
- Men's Trail Running Shoes
- Men's Minimalist Running Shoes
- Women's Cross-Training Shoes
- Women's Road Running Shoes
- Women's Trail Running Shoes
- Women's Minimalist Running Shoes
- All Running Footwear
-
Paddle
- KAYAKING
- Kayaks
- Cockpit Covers
- Kayak Accessories
- Kayak Carts
- Kayak Paddles
- Safety Equipment
- Spray Skirts
- CANOEING
- Canoes
- Canoe Paddles
- Canoe Packs
- Canoe Accessories
- PADDLEBOARDING
- Paddleboards
- Paddleboard Paddles
- CLOTHING AND PFDs
- Dry Suits
- Paddling Footwear
- Paddling Gloves
- Paddling Jackets
- PFDs
- Rashguards
- Wetsuits
- All Paddling Clothing
-
Snowsports
- DOWNHILL SKIING
- Downhill Skis
- Downhill Ski Bindings
- Downhill Ski Boots
- Ski Bags
- Ski Goggles
- Ski Helmets
- Ski Packs
- Downhill Ski Poles
- Men's Downhill Ski Clothing
- Women's Downhill Ski Clothing
- Gloves, Hats and Socks
- All Downhill Skiing
- XC AND BACKCOUNTRY
- Cross-Country Skiing
- Backcountry Skiing
- Nordic Touring
- Metal-Edge Touring
- Race/Performance Skiing
- Cross-Country Ski Tuning
- Cross-Country Ski Waxes
- Men's XC Clothing
- Women's XC Clothing
- Kids' XC Ski Gear
- All Cross-Country
- All Tele/Randonee
- SNOWBOARDING
- Snowboards
- Snowboard Bags
- Snowboard Bindings
- Snowboard Boots
- Snowboard Goggles
- Snowboard Helmets
- Snowboard Packs
- Stomp Pads
- Men's Snowboard Clothing
- Women's Snowboard Clothing
- Gloves, Hats and Socks
- All Snowboarding
-
Travel
- LUGGAGE
- Travel Packs
- Wheeled Backpacks
- Wheeled Duffels
- Wheeled Luggage
- Kids' Luggage
- Bike Travel Cases
- Ski Bags
- All Luggage
- DAY BAGS
- Camera Bags
- Daypacks
- Duffel Bags
- Handbags
- Laptop Bags
- Messenger Bags
- Shoulder Bags
- Travel Totes
- All Day Bags
- PACKING
- Luggage Locks
- Luggage Tags
- Organizers
- Packing Cubes
- Packing Folders
- Pouches
- Electronics Cases
- Toiletry Kits
- All Packing
-
Men
- MEN'S JACKETS
- Casual Jackets
- Down Jackets
- Fleece Jackets
- Insulated Jackets
- Rain Jackets
- Running Jackets
- Wind Shells
- Ski Jackets
- Snowboard Jackets
- Soft Shell Jackets
- All Men's Jackets
- MEN'S CLOTHING
- Pants
- Shirts
- Shorts
- Sweaters
- Swimming
- Underwear
- Vests
- Footwear
- Tall Clothing
- All Men's Clothing
- MEN'S ACCESSORIES
- Balaclavas
- Bandanas
- Belts
- Gaiters
- Gloves and Mittens
- Hats
- Headwear
- Socks
- Sunglasses
- Watches
- All Accessories
-
Women
- WOMEN'S JACKETS
- Casual Jackets
- Down Jackets
- Fleece Jackets
- Insulated Jackets
- Rain Jackets
- Running Jackets
- Wind Shells
- Ski Jackets
- Snowboard Jackets
- Soft Shell Jackets
- All Women's Jackets
- WOMEN'S CLOTHING
- Footwear
- Pants
- Shirts
- Shorts
- Skirts and Dresses
- Sweaters
- Swimming
- Underwear
- Vests
- Petite Clothing
- Plus Sizes
- All Women's Clothing
- WOMEN'S ACCESSORIES
- Belts
- Gaiters
- Gloves and Mittens
- Hats
- Headwear
- Scarves
- Socks
- Sports Bras
- Sunglasses
- Watches
- All Accessories
-
Kids
- KIDS' SHOPS
- Boys' Clothing
- Girls' Clothing
- Infant & Toddler Clothing
- Kids' Outerwear
- Kids' Shoes
- Kids' Ski Clothing
- Kids' Snowboard Clothing
- Eco-Conscious
- All Kids'
- ACCESSORIES
- Hats
- Gloves and Mittens
- Socks
- Sunglasses
- Toys
- Underwear
- Water Bottles
- All Kids' Accessories
-
Footwear
- MEN'S FOOTWEAR
- Men's Boots
- Men's Sandals
- Men's Shoes
- Men's Slippers
- Men's Wide Sizes
- Men's Socks
- WOMEN'S FOOTWEAR
- Women's Boots
- Women's Sandals
- Women's Shoes
- Women's Slippers
- Women's Narrow Sizes
- Women's Wide Sizes
- Women's Socks
- KIDS' FOOTWEAR
- Kids' Boots
- Kids' Sandals
- Kids' Shoes
- Kids' Slippers
- Kids' Socks
- FOOTWEAR ACCESSORIES
- Gaiters
- Insoles
- Laces
- Treatments
- Winter Traction
- Brands
-
All
- Backcountry Skiing Shop
- Backpacks
- Binoculars
- Bikes
- Books and Maps
- Camping and Hiking
- Car Racks
- Climbing
- Cross-Country Skiing
- Cycling
- Dog Gear
- Downhill Skiing Shop
- Electronics
- Fitness
- Gift Cards
- GPS
- Hammocks
- Helmet Cams
- Jackets
- Kids'
- Luggage and Day Bags
- Made in the USA
- Men's Clothing
- Men's Shoes and Boots
- Outdoor Lifestyle
- Paddling
- Running
- Sale & Clearance
- Sleeping Bags
- Snowboarding Shop
- Snowshoeing Shop
- Snowsports
- Strollers
- Deals
REI Anniversary Sale May 17–27. Plus, members SAVE 20% on 1 full-price item with coupon code ANNV13. Details
- REI Gift Cards
- Buy now!
- Check your REI gift card balance
- REI Membership
- REI member benefits include an annual refund (typically 10% on eligible purchases).
- Join REI today!
- Sign up for REI Gearmail®
- and get 15% off selected items!
- Store Locator
- Locate an REI store near you.
-
- Company Info
- About REI
- Jobs at REI
- 100% Satisfaction Guarantee
- Corporate & Group Sales
- Privacy Policy
- Terms of Use
- Site Rules
- California Transparency in Supply Chains Act - REI's Disclosure
- REI Membership
- Become an REI Member
- Member Help
- Find Membership Number
- Dividend Lookup
- Apply for an REI Visa® Card
- Manage Your REI Visa® Card
- We Care
- Stewardship
- Volunteer
- Eco-Conscious Gear
- Expert Outdoor Advice
- Expert Advice Articles
- Outdoor Videos
- REI Outdoor School
- Store Events
- Online Affiliate Program
- Become an REI Affiliate
- Gift Registry
- Shop All Brands
- Shop Our Catalogs
- Shop All Categories