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Kelty Cosmic 40 Degree (2018) Sleeping Bag


Sale Price $87.95


You Save $32.00 27%

End of Season Clearance!

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Sale Price $87.95


You Save $32.00 27%

Availability: In Stock!

Ships Monday.

Availability: In Stock!

Ships Monday.
Item # KEL96204M
The Kelty Cosmic 40 Degree sleeping bag is ideal for summer or warm-weather backpacking and camping. Lightweight, hydrophobic DriDown fill and an array of features make the affordable sleeping bag a real bargain.
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The Kelty Cosmic 40 Degree sleeping bag is ideal for summer or warm-weather backpacking and camping. Lightweight, hydrophobic DriDown fill and an array of features make the affordable sleeping bag a real bargain.

The Cosmic 40 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 40 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 40 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 40 Degree sleeping bag is available in Regular (fits up to 6' 0") and Long (up to 6' 6") lengths. Each Cosmic 40 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
  • 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 Regular: 1 lb 12 oz
Long: 1 lb 14 oz
Other Stuff Sack included
Warranty Limited Lifetime
Packed Size Regular: 7" x 12"
Long: 7" x 12"
Shell Material 50D Down Proof Polyester
Liner Material 50D Polyester Taffeta
Fits to Length Regular: 6' 0"
Long: 6' 6"
Fill Material 600 Fill DriDown
Temperature Rating 40 Degrees F


Real Customer Reviews

Average Rating:
(based on 11 real customer reviews)

1-10 of 11

  1. 1
  2. 2
Great budget friendly bag
Reviewed by Todd C. - November 18, 2018

Likes: Roomy fit for those of us with broader shoulders. Surprisingly warm. Compresses nicely. Considering the price point, hard to beat the combination of weight and warmth.

Dislikes: None. Again, for the price point this bag delivers a lot.

Great product, great price, great service!
Reviewed by Howard M. - September 4, 2018

Likes: Name brand, good price, good quality

Dislikes: Nothing

Love the shape
Reviewed by Adrienn U. - July 8, 2018

Likes: For price and overall weight, it's hard to beat. Just used it on a trip with 37 degree overnight temps, and it was very warm with just a single layer on. Love the shape...plenty of room for your feet and legs.

Dislikes: I like everything...

High quality and great price.
Reviewed by Bill J. - June 18, 2018

Likes: For the price, this is an excellent light weight summer bag. I wish I had bought it years ago instead of hanging onto my old polyfil bag. High quality and very comfortable.

Dislikes: No complaints.

Perfect dri-down sleeping bag at an affordable price
Reviewed by Marjorie - May 5, 2018

Likes: Comfortable

Dislikes: None

Excellent Sleeping Bag
Reviewed by Dahlius C. - April 23, 2018

Likes: Comes in a small stuff sack, compressible, comfy, and tested it out in 46 degree weather and it did just fine. I’m a warm sleeper and I actually had to unzip the foot of a little. A cold sleeper it would do you good up to 45 for sure, warm sleepers I would say you could stretch this to 35-37 degrees (Fahrenheit).

Dislikes: Really, Nothing.

Good price
Reviewed by Orlando R. - November 7, 2017

Likes: Good price for the bag.

Dislikes: None so far.

Reviewed by Bruce P. - September 26, 2017

Likes: * Superior to the previous version in quality and price

Dislikes: - Too much roominess; while some people will enjoy the space at the top, the bottom feels particularly extraneous
- I don’t like the red color at the head

Great sleeping bag for the price you can't beat it.
Reviewed by Ronald D. - July 3, 2017

Likes: My kids are fighting to take turns sleeping in this bag in the house. Very comfortable very warm just bring a pillow.

Dislikes: It would be great if they had built in padding on the bottom.

can't beat it for the price
Reviewed by Joel P. - June 4, 2017

Likes: awesome price for down. Temp gauge is about right. lightweight. I think it is the total package. Why pay $350 when you don't have to.

Dislikes: none

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