Kelty Cosmic 20 Sleeping Bag - Men's

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Sleep snug and sound on subfreezing fall nights in the men's Kelty Cosmic 20 sleeping bag. It features soft-as-silk nylon taffeta fabric and a handy stash pocket for your headlamp.

  • Features

    • 600-fill-power DriDown™ and durable water repellent (DWR) treatment are PFC-free
    • 20-denier nylon taffeta shell is soft yet durable
    • 50-denier polyester taffeta lining feels like satin sheets on your skin
    • Dual-sliding, locking 60 in. zipper features an antisnag design
    • Draft collar and comfortable hood help keep the cold out and the heat in
    • Stuff sack included


    Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. The Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women's bags and the Lower Limit rating for men's and unisex bags. Everyone's body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.
    View the Kelty Cosmic Product LineView all Kelty Men's Sleeping Bags
  • Technical Specs

    Best Use


    Tested Lower Limit

    19 degrees (F) - ISO

    Tested Comfort

    30 degrees (F) - ISO

    Temperature Rating (F)

    19 degrees (F)

    Temperature Rating (C)

    -7 degrees (C)


    20-denier nylon taffeta

    Zipper Location


    Insulation Type


    Water-Resistant Down



    600-fill-power DriDown

    Fill Weight



    50-denier polyester taffeta

    Sleeping Bag Shape


    Compressed Volume




  • Reviews
    23 reviews with an average rating of 4.2 out of 5 stars

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