ALPS Mountaineering Trance 30/15 Sleeping Bag System

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Color: Blue/Navy
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Can't decide between a sleeping bag or quilt for your trip? The 30°/15° ALPS Mountaineering Trance System is a quilt with footbox paired with a TechLoft Micro mummy bag for overnight comfort.

  • Features

    • Sleep system functions as a 15° mummy bag, a 30° mummy bag or a standalone quilt
    • Removable quilt top with enclosed footbox
    • Mummy bag with TechLoft Micro synthetic insulation provides warmth, loft and compactness
    • 2-layer offset construction and a contoured, hooded mummy shape help maximize warmth on chilly nights
    • #8 separating zippers offer smooth operation
    • Insulated chest and zipper baffles help combat heat loss
    • High-quality nylon ripstop shell fabric and soft polyester liner offer durability and comfort
    • Includes an 8 x 15 in. compression stuff sack
    • Closeout


    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 ALPS Mountaineering Camping Sleeping Bags
  • Technical Specs

    Best Use


    Tested Lower Limit

    15 degrees (F) - ISO

    Tested Comfort


    Temperature Rating (F)

    15 degrees (F)

    30 degrees (F)

    Temperature Rating (C)

    -1.1 degrees (C)

    -9.4 degrees (C)


    4 lbs. 6 oz.



    Zipper Location


    Insulation Type



    TechLoft Micro synthetic fibers

    Fill Weight

    2 lbs. 3.5 oz.



    Sleeping Bag Shape


    Fits Up To (in.)

    80 inches

    Shoulder Girth (in.)

    62 inches

    Hip Girth (in.)

    54 inches

    Stuff Sack Size

    8.5 x 17 inches

    Stuff Sack Volume

    10 liters

    Compressed Volume

    8.5 liters



  • Reviews
    1 reviews with an average rating of 5.0 out of 5 stars

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