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Cosmic Down 20 Sleeping Bag

Availability: translation missing: en.general.icons.icon_check_circle icon Hot Seller! Only 1 left! 🔥

Remember the trapezoid from 10th-grade geometry? Turns out, this funky ol’ shape is ideal for helping sleeping bag baffles retain heat. The trapezoidal baffle construction improves on Kelty's best-selling Cosmic 20 sleeping bag—and it’s just one of the reasons the Cosmic Down 20 is one of our favorite three-season superstars. We also love the natural-fit foot box for happier feet, and a PFC-free water-repellent coating for a healthier environment.


  • Innovative trapezoidal baffle construction = thermal efficiency
  • Lightweight and warm 550 fill down
  • Environmental and health friendly C0 and PFC-free DWR fabrics
  • Zippered internal stash pocket for headlamp, cell phone or actual… stash
  • Buttery-soft and durable 20D Nylon shell fabric
  • Zipper draft tube with anti-snag zipper design makes it easy to get in and out
  • Dual slider for ventilation with locking zippers
  • Natural fit spacious footbox = more room to wiggle your toes
  • Comes with stuff sack for quick departures
  • Regular Length 
  • ISO Extreme Rating: -11°F
  • ISO Limit Rating: 21°F
  • ISO Comfort Rating: 32°F
  • Fits to: 6' 0" 
  • Weight: 2 lb. 10 oz.
  • Fill weight: 16.37 oz.
  • Stuffed size: 8" x 13"