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Plasma 30° F Sleeping Bag

In Stock  Product Number: 24959

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This is it folks! Heaps of advancements in fabric, insulation, and design add up to the most evolved sleeping system on Earth. Incredibly lightweight Pertex? fabric forms a water-resistant, breathable barrier against the elements. 900+ fill-power goose down is hand stuffed in Santa Rosa, California. Flow Gate Construction allows warm air to circulate without allowing the down to shift.


  • Certified 875+ Fill Power Goose Down
  • Down Defender to Improve Water-Resistance in Wet Conditions
  • EN Tested
  • Insotect Flow Vertical Baffle System Reduces Weight and Transfers Heat from the Core of Your Body to Your Extremities
  • Designed to Increase Thermal Value Without Adding Weight
  • Ultralight and Durable 10 Denier Pertex Quantum Fabric
  • Wrap Around Foot Box Construction Incorporates Flow Design with Marmot’s Classic Trapezoid Shape
  • Full Length Zipper
  • Insulated Draft Tube
  • Hood Drawcord
  • Insulated Collar with Easy Access Cord
  • Velcro-free Face Muff
  • Two Way Zipper Sliders
  • Two Hang Loops
  • Zipper Garage
  • Fill: 875+ Fill Power Goose Down
  • Temperature: 30° F / -1° C
  • EN Testing Norm: 32.5°F / 0.3°C Limit
  • Bag Weight: 1lbs 7.6oz (670g)
  • Fill Weight: 10.8oz (305g)
  • Loft: 4.5
  • 83in (211cm)
  • 60in (152.4cm)
  • Hip: 58in (147.3cm)
  • Foot: 43in (109.2cm)
  • Stuff Sack: 7 x 15in
  • 17.78 x 38.1cm

Gender: Unisex
Material: Pertex Quantum
Season: F15
Vendor ProductId: 22280
Review ProductId: 24959


by PowerReviews
MarmotPlasma 30° F Sleeping Bag (Long) New

(based on 3 reviews)

Ratings Distribution

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of respondents would recommend this to a friend.

Reviewed by 3 customers

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Incredibly light and warm!! perfect!!

By Little Mary

from Quebec, Canada

Verified Buyer

Comments about Marmot Plasma 30° F Sleeping Bag (Long) New:

Perfect for cycle-tourism or backpacking, when weight is important!

(3 of 3 customers found this review helpful)


Worth every penny

By Jeff

from Chattanooga

About Me Avid Adventurer

Staff Reviewer


  • Comfortable
  • Lightweight
  • Packs Small
  • Ultralight
  • Warm


    Best Uses

    • 3 Season Camping
    • Backpacking

    Comments about Marmot Plasma 30° F Sleeping Bag (Long) New:

    The Marmot Plasma 30 is the fluffiest, loftiest, most spectacular down sleeping bag I have ever climbed into. Ever. And I own three other 800+ fill down sleeping bags!

    First of all, the 900-fill goose down is preposterously warm and light. The warmth-to-weight ratio here is absolutely as good as it gets. Beyond the down insulation, though, the Pertex Quantum shell has a great feel and doesn't seem like it has to be handled carefully... in contrast to other ultralight down sleeping bags on the market. The fabric has sort of a micro-ripstop to it, and it doesn't leak down like some of my other down bags do! Frankly, the shell material is above and beyond my expectations, and what sold me on this bag specifically.

    In addition to its seriously light weight, Marmot has really done a great job maximizing thermal efficiency here. The face collar and down-filled hood trap heat perfectly, and comfortably. The neck draft collar is big and fluffy, and the draft tube is both huge and effective. The zipper is a YKK and rolls smoothly, with a well-designed anti-snag strip on the inside to help from snagging the draft tube. You do have to be careful not to catch the outer shell when zipping quickly, but at least the material is tough enough to handle it!

    All in all, this thing is a dream to sleep in, and the Backpacker Magazine "editor's choice" award and Outside Magazine "gear of the year" award it earned in 2011 both agree with me. At 1 lb 8 oz, you're not going to find a better, lighter bag that will legitimately keep you warm when the night-time temperatures reach that magical +32F threshold!

    I wish it came with a compression stuff sack instead of a regular one, but you'll be surprised how small this thing packs anyway. Seriously, five stars out of five. I'd give it six stars if that were possible. The Marmot Plasma sleeping bag is the best bag out there right now, and it's worth the price of admission.

    • What Is Your Gear Style:
    • Minimalist
    • Was this a gift?:
    • No

    (1 of 1 customers found this review helpful)



    By M. Dale

    from Damascus, OR

    About Me Avid Adventurer

    Verified Buyer


    • Comfortable
    • Durable
    • Lightweight
    • Packs Small
    • Warm


    • Zipper Snags Easily

    Best Uses

    • 3 Season Camping
    • Backpacking
    • Climbing

    Comments about Marmot Plasma 30° F Sleeping Bag (Long) New:

    I would have given this 5 stars but there is always room for improvement. The zipper has stuck on a few occasions and I feared I might actually damaged the material but thus far have not.
    Marmot continues to innovate even though they've had many bags in their line-up for years (now classics). The weight savings is minor over a very capable Marmot Hydrogen 30 for less money. The materials and the fact it's 900 fill justifies the difference in price for the Plasma 30. My get the Plasma 15 but I'm happy with my Helium for the time being.

    • What Is Your Gear Style:
    • Comfort Driven
    • Was this a gift?:
    • No

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    1 Question | 1 Answer
    Displaying question 1
    • Q:

      Is you Marmot Plasma 30 sleeping bag regular length part # 39780 filled with 875 or 900 down?
      Asked on 8/21/2014 by Israh from United States

      1 answer

      • Staff Reviewer


        It's 900-fill-power down!

        Answered on 9/8/2014 by Jeff from Rock/Creek
    Displaying question 1

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