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Marmot Phase 20 Sleeping Bag - Men's

Marmot Phase 20 Sleeping Bag - Men's

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Product details
Official manufacturer description

Phase has an anatomically shaped footbox and curved baffles, 850 fill power down defender, and Pertex Quantum fabric for a lightweight 20 degree bag that performs in all conditions.


  • Pertex Quantum® fabric is designed to protect from wind and improve the efficiency of insulation
  • Water-resistant Down Defender provides lightweight warmth and an extra level of moisture protection and retains critical loft of the 850-fill-power-down insulation
  • Smooth, curved baffles reduce down shifting while nautilus multi-baffle hood limits heat loss
  • Anatomically designed footbox with wrap-around construction increases warmth
  • Full-length, locking YKK two-way zipper
  • Internal stash pocket; Snagless draft tube
  • EN tested
  • Hand-filled and finished in Rohnert Park, CA
  • 100% recycled shell & lining
Age Group
Arctic Navy
Fill type
850+ Fill Power Goose Down
Sleeping bag shell
Pertex Quantum© 10d 100% Nylon Ripstop 0.88 oz/ yd
Temperature rating
20° F
Marmot Phase 20 Sleeping Bag - Men's
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Top reviews
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Taylor Nelson
Taylor Nelson
Verified camping & hiking expert
Reviewed Jul 13, 2022

Super light and packs down well for its temperature rating. Marmot has a great warranty, and is known for quality gear designed for the mountains. 850-fill goose down is treated for water resistance, and proprietary baffling in the bag's construction keeps down from bunching. If taken care of, this bag will last 20+ years.

Nicholas Johnson
Nicholas Johnson
Verified camping & hiking expert
Reviewed Jul 13, 2022

It's a great sleeping bag for 3-season use. In my experience, with some layering, you can sleep comfortably in a bag of this rating down below 20 degrees.