Marmot Trestles 15 Sleeping Bag - Women's

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Stay warm and dry while car camping and more in the full-featured Marmot Trestles 15 sleeping bag. The women-specific design and synthetic insulation are designed for sustained cold, wet weather.


  • Women-specific fit adds insulation in key areas where women typically get chilly—at the feet and head
  • Durable SpiraFil™ insulation provides an exceptional combination of warmth, softness, low weight, and packability
  • Wave construction on top of bag provides maximum loft and warmth; blanket construction on the bottom offers exceptional warmth and comfort
  • 3D hood construction envelops your head in warmth; the 2 drawcords that tighten hood are easy to differentiate in the dark
  • 3D footbox increases the insulation and room for your feet
  • External stash pocket keeps nighttime necessities close at hand
  • Full-length locking YKK 2-way zipper
  • Fold-down second zipper provides added ventilation options and easy bag access
  • Zipper guard along insulated draft tube keeps fabric from snagging in the coils
  • 2 hang loops for storing and airing out sleeping bag
  • Includes a compression stuff sack


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 Marmot Trestles Product LineView all Marmot Backpacking Sleeping Bags

Technical Specs

Best Use


Tested Lower Limit

3.6 degrees (F) - EN

Tested Comfort

16.7 degrees (F) - EN

Temperature Rating (F)


Temperature Rating (C)




Zipper Location


Insulation Type



SpiraFil LT polyester fibers



Sleeping Bag Shape


Stuff Sack Volume

22.1 liters



116 reviews with an average rating of 4.6 out of 5 stars

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