* This post may have affiliate links. Please see my Disclosure.*

Kelty Cosmic 0 Degree Down Sleeping Bag Review

Kelty Cosmic 0 Degree Down Sleeping Bag Review
Buy on Amazon

Kelty Cosmic 0 Degree Down Sleeping Bag Review

The Kelty Cosmic 0 Degree Down Sleeping bag alludes to the feeling of warmth. Perfect for a winter backpacking trip, the Cosmic Down 0 retains warmth exceptionally well by utilizing an insulated draft tube with an anti-snag design, an efficient, form-fitting hood, and a full draft collar. Box-baffle construction, ground-level seams, and differential cut maximizes the warmth of the bag and eliminates cold spots. The 58″ dual-slider zipper makes it easy to get into and out of the bag.

Kelty Cosmic 0 Degree Down Sleeping Bag open


  • Temp Rating : 0º / -18ºC (EN tested)
  • Insulation: 550 Fill-Power Down
  • Weight: 3 lb. 12 oz. / 1.68kg
  • Shoulder Girth: 62″ / 157cm
  • Stuff Size: 9″ x 17″ / 23cm x 43cm


This sleeping bag is a 0-degree bag, plain and simple. It’s extremely lightweight for a 0-degree bag and if you buy a stuff-sack you can compress this sucker down pretty darn small. A lot of other 0 degree bags are a lot more money so you might be wary of this one…but it performs. The bag is light and packs small, it has an expensive feel to it, very pleasant to touch.


The Kelty Cosmic 0 degree down sleeping bag’s best attribute is the price. At about $170 and it would be hard to find a comparable new down sleeping bag.

Where to Buy:

The Kelty Cosmic o Degree Sleeping Bag is available from these retailers:


Buy It on eBay


Buy It on Amazon

Check out a video review below:


Pound for pound, cubic centimeter for cubic centimeter, dollar for dollar, no synthetic fill bag compares to the Kelty Cosmic 0 Degree Down Sleeping bag.

Buy on Amazon

Leave a Reply

Your email address will not be published. Required fields are marked *