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  • Marmot Helium Sleeping Bag: 15 Degree Down Back
  • Marmot Helium Sleeping Bag: 15 Degree Down Cobalt Blue/Blue Night
  • Marmot Helium Sleeping Bag: 15 Degree Down Back

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  • Marmot Helium Sleeping Bag: 15 Degree Down Cobalt Blue/Blue Night

Marmot Helium Sleeping Bag: 15 Degree Down

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    • Sale Cobalt Blue/Blue Night
    5.0 5 1

    1 Review


    So light you'll forget you're asleep.

    Lighter than an imaginary cloud (and far warmer), Marmot's Helium 15-Degree Down Sleeping Bag is the perfect bag for long, chilly trips when added ounces can mean serious slowdowns. The Helium is part of Marmot's Ultralight series, which isn't quite as airy as the barely-there Ion, but it's a lot more affordable and still a killer three-season bag for backpacking, camping, and alpine missions. Pertex Microlight and nylon ripstop fabrics keep the superlight 800-fill goose down from escaping, and Marmot's Smooth-Curved baffle construction prevents the insulation from shifting around, so you're not fighting cold spots as you drift off to sleep. The Helium also sports an anatomically designed footbox and drawcord hood to keep your extremities toasty, and it uses a dual-zipper construction to let you fold down the top of the bag to sit up and increase ventilation when the night is a little warmer than expected.

    • 15 degree temperature rating
    • 800-fill down insulation
    • Pertex Microlight and nylon ripstop fabrics
    • DWR treatment
    • Anatomically designed wrap-around footbox
    • Drawcord hood
    • Dual zippers
    • Item #MAR00TJ

    Tech Specs

    [face fabric] Pertex Microlight (20D nylon ripstop), DWR treatment, [lining] 30D nylon, DWR treatment
    800-fill down
    full-length left, short right
    Bag Length
    [regular] 6 ft, [long] 6 ft 6 in
    15 F
    Claimed Weight
    [regular] 2 lb 1 oz, [long] 2 lb 4.5 oz
    Recommended Use
    camping, backpacking
    Manufacturer Warranty

    Tech Specs

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    One for the long haul

    • Familiarity:I've put it through the wringer

    This is my second Marmot Helium bag. the first served me for almost 20 fact, I still use it in the summer. It has lost some loft and warmth from a couple goes through the washing machine.

    The new one I have had for a couple seasons and it's just a great spot to be when it gets chilly. I've used it down to about 20 degrees on a October trip to the Sierra. Super compressible and light, but still plenty roomy so I can pull my knees up (i'm 6' even and sleep on my side). I am very careful with this bag: it doesn't stay stuffed any longer than necessary.

    Looking forward to many years of service from this bag.