Mountain Hardwear Heratio 32 Sleeping Bag - Women's

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Weighing only 1 lb. 14 oz. and rated to keep you warm to 32°F, the down-filled Mountain Hardwear Heratio 32 Sleeping Bag is a great way to lighten your load on mild-weather backpacking trips.

  • Features

    • Insulated with lightweight and compressible Q.Shield™ 650-fill-power down to keep you warm
    • Q.Shield advanced water-repellency technology protects individual down fibers from moisture so they retain loft and insulation properties; Q.Shield won't wear off
    • Women-specific comfort mummy cut efficiently maximizes warmth without constriction, with extra insulation in the torso and foot areas
    • ThermoTrap Baffle construction locks the down into small chambers for less down migration, an even loft height and consistent wamth
    • With a European Norm (EN) comfort rating of 32°F, the Heratio 32 is a versatile bag for lightweight adventures in the mountains in summer
    • Down-filled face gasket comfortably blocks drafts at the hood opening
    • Insulated draft tube with anti-snag panel prevents cold spots along the zipper
    • Full-length, 2-way zipper with locking sliders stays in place when the bag is partially unzipped for ventilation
    • Single-handed drawcords easily adjust hood closure
    • Mountain Hardwear Heratio 32 Sleeping Bag for women comes with a mesh storage sack and a 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 all Mountain Hardwear Women's Sleeping Bags
  • Technical Specs

    Best Use


    Tested Lower Limit

    20 degrees (F) - EN

    Tested Comfort

    32 degrees (F) - EN

    Temperature Rating (F)

    32 degrees (F)

    Temperature Rating (C)

    0 degrees (C)



    Zipper Location


    Insulation Type


    Water-Resistant Down



    650-fill down



    Sleeping Bag Shape


    Stuff Sack Size

    7 x 14 inches

    Stuff Sack Volume

    10 liters



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