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  • Marmot - Hydrogen Sleeping Bag: 30 Degree Down - Dark Citron/Olive

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  • Marmot - Hydrogen Sleeping Bag: 30 Degree Down - Dark Citron/Olive

Marmot Hydrogen Sleeping Bag: 30 Degree Down

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    • Reg/Left Zip
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    • Dark Citron/Olive
    4.558

    8 Reviews

    Details

    Light on the back, warm in the sack.

    Being a member of Marmot's Ultralight series of sleeping bags, the Hydrogen 30-Degree Down Bag is a great option for the ounce-counting backpacker that still appreciates a good night's sleep after a long day on the trail. To keep the Hydrogen warm in the face of condensation, Marmot used Pertex Microlight fabric to save weight, increase breathability, and protect the down insulation from light moisture. Better yet, the insulation consists of 800-fill down that's been finished with Marmot's Down Defender treatment to help prevent it from clumping and ultimately losing insulating properties should it happen to get wet. The basic mummy shape efficiently traps warm air and has an anatomic footbox to give your feet some extra room to roam once you're in for the night, and comes with either a left- or right-handed full-length zipper to please right- and left-sided sleepers. An additional zipper on the opposite side allows the front of the bag to fold down for added comfort when you're sitting up in your bag waiting for a storm to pass.

    • 30-degree temperature rating
    • 800-fill down insulation
    • Down Defender water-resistant treatment
    • Mummy shape with anatomic footbox
    • Pertex Microlight 20D nylon ripstop
    • Second fold-down zipper
    • Stuff sack included
    • Item #MAR00T4

    Tech Specs

    Material
    Pertex Microlight (20D nylon ripstop)
    Insulation
    800-fill down, Down Defender treatment
    Shape
    mummy
    Zipper
    left/right
    Max User Height
    [regular] 6 ft, [long] 6 ft 6 in
    Shoulder Circumference
    [regular] 61, [long] 63
    Hip Circumference
    [regular] 56, [long] 58
    Foot Circumference
    [regular] 39, [long] 41
    Bag Length
    [regular] 81, [long] 87
    Draft Tube
    yes
    Fill Weight
    12 oz
    Degree
    30 F
    European Norm Comfort Rating
    36.6 F
    European Norm Lower Limit Rating
    24.4 F
    Stuff Sack
    yes
    Stuff Size
    6 x 12 in
    Claimed Weight
    1 lb 7.5 oz, 1 lb 11 oz
    Recommended Use
    backpacking
    Manufacturer Warranty
    lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Not as warm as expected

      Finally got a chance to try this bag out this past weekend. The bag is rated 30 degree. Nights were around 30-32, maybe a little less. From all the reviews I read I thought I would be fine. I was really cold, even with double long johns and my down sweater. I would return it if it weren't already past the 30 day limit.

      Awesome bag

      • Familiarity: I've put it through the wringer

      I have both a Hydrogen and a Helium bag, and I love them both. These bags are both incredibly warm and light. This bag is so light that I barely even notice it on very long hikes and steep technical climbs, and it comes with a large storage bag to keep it loose for storage and a separate small bag for compressing it and taking it on hikes/climbs. The sleeping bag compresses so well that with almost no effort I can stuff it in the tiny sack and quickly be on my way. I tend to use the 30deg bag for high-altitude summer climbs, where the light weight enables me to climb hard and move quickly but it still provides good warmth in the cold nights. Once september comes or if there is a chance of any cold high-altitude weather I will take the 15deg bag instead, but for most mountain activities I have found the 30deg bag to be sufficient and worth the lighter weight, especially with an insulative pad and my layers on. I can't imagine a better bag and highly recommend it for alpine climbing activities in moderate weather, I only wish it were also available with left/right zipper options. I am 6ft tall and the regular works great with a little room for stuffing a few clothes at the bottom if necessary.

      Its soft and easy to carry

      • Familiarity: I've used it once or twice and have initial impressions

      I select this sleeping bag for its weight and small size compare to others in same temperature range, I took it out for an one night camping on top of a mountain of 1800m in summer. It is warm in most places but i feel cold spot at middle area, its somewhere around my belly. The room inside sleeping bag is big and its quite easy to move around. (i am a girl). Overall i will recommend this sleeping bag specially u want to reduce weight of your bag and dont want sacrifice too much on comfort

      Nice and Warm

      • Familiarity: I've used it once or twice and have initial impressions

      This is my first down sleeping bag, and first high end bag. I have used it once in the backyard with my son. The temperature range was from mid 40s to about 33. I slept in short socks a T-shirt and shorts. I found the bag to be quite warm at those temperature ranges. When I had the bag completely zipped I was too hot and a touch sweaty. With a partial zip down I was plenty comfortable all night, while my nose was a little chilly. I really like this bag and look forward to getting to use it at some lower temperatures to see how low the temps can go and me still be comfortable.

      I would say the temperature rating is spot on for my tastes.

      I would recommend this bag, after future uses I will come back and update.

      Another Favorite.

      • Familiarity: I've used it several times

      I love this bag. In true Marmot fashion it is top quality, super light and packs small. There isn't a thing I don't like about this bag. I plan on using until the temps really dip here in Mich and then I'll pull out another of my Marmot bags. Highly recommend this bag.

      Performance vs. weight beast

      • Familiarity: I've put it through the wringer

      I bought this sleeping bag about three years ago because it was on sale and seemed light enough for our 5 day backcountry fly fishing trip we take twice a year. Took it to Clingman's Dome in February and was surprised when we got hit by weather totally out of the forecast. I was sure I was going to be very cold. Bag did great and also has enough girth for a side sleeper. Best gear I have, it has performed in every situation. Getting ready to buy a Marmot 0 degree bag this weekend. I highly recommend this bag, especially the performance, weight and packability. I think it is the best value in the market.

      Warm and Light

        I would very much keep this sleeping bag but i ended up returning it to buy a cheaper marmot sleeping bag. Although it's cheaper and not as warm as this one, I just can't afford something like this right now. Maybe one day in the future~