Marmot Plasma 40 Degree (2013) Sleeping Bag

Item # MAR92201M   |   Customer Rating: Read 2 reviews  |    Bookmark and Share

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Starting At: $418.95

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  • Marmot Plasma 40 Degree (2013) Sleeping Bag
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Key Features

  • Certified 900 fill-power goose down
  • 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 footbox construction incorporates flow design with Marmot's classic trapezoidal 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


Recommended Use: Ultra-Lightweight Backpacking
Item Weight: Regular: 1 lb 2.7 oz
Long: 1 lb 3.7 oz
Type: Down
Packed Size: 13" x 7" (prior to compression)
Shell Material: 10D 100% Nylon Micro Ripstop DWR 0.8 oz
Liner Material: 10D 100% Nylon Micro Ripstop DWR 0.8 oz
Fits to Length: Regular: 6' 0"
Long: 6' 6"
Fits to Girth: 60"
Fill Material: 900+ Goose Down
Temperature Rating: 40 Degrees F
EN Comfort Rating: 50.0 Degrees F
EN Lower Limit Rating: 43.52 Degrees F
Other: Stuff Sack and Storage Sack Included
Warranty: Lifetime

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Product Highlights

Weighing just over a pound, the high-performance Marmot Plasma 40 Degree down sleeping bag is ideal for warm weather backpacking. Premium 900+ fill power goose down insulation, Flow Gate technology and vertical baffling create an extremely lightweight, compressible package for backcountry adventure.

The Plasma 40 Degree is insulated with certified 900+ fill power European goose down. Fill power measures the loft or "fluffiness" of down insulation and Marmot goes to great lengths to guarantee the 900+ certification with a battery of in-house and external verifications. Renowned for their efficiency in retaining heat and compressible properties, down fibers have an incredibly soft, comfortable feel and, despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet.

Flow Gate construction is used in the Plasma 40 Degree sleeping bag to provide better thermal value and increased weight reduction. Strategically placed baffles eliminate lateral and vertical down shifting by using vertical chambers with Flow Gates to control the position and density of the down insulation. This technology also enables the user to manually shift the down to preferred locations, customizing the sleeping system to each individual. Wrap-around foot box construction incorporates the Flow Gate design with Marmot's classic, trapezoidal shape for increased warmth and a comfortable fit.

Despite its lightweight construction, the Plasma 40 Degree makes no sacrifice with regards to performance and features. A contoured, ergonomic hood, insulated draft tube and insulated collar around the neck area seal out cool air and feel soft and comfortable against your skin. Two-way zipper sliders offer venting options and zipper guards help to avoid irritating and damaging snags.

The Marmot Plasma 40 Degree sleeping bag is available in Regular (fits up to 6' 0") and Long (fits up to 6' 6") lengths. A stuff sack and storage sack are included.

Styles available: Long, Regular

Marmot part numbers: 20050, 20010

Product Reviews

Average Customer Rating:
Marmot Plasma 40 Degree (2013) Sleeping Bag

Average customer rating:
Number of reviews: 2

Individual Customer Reviews:

Displaying Reviews 1-2 of 2

  • . Scottsdale AZ

    Likes: Lightweight, very warm, compact, roomy
    The shell works very well for repelling dampness
    Very high quality sleeping bag that will last for years

    Dislikes: It is pricey, but, you get what you pay for. This isn't really a dislike, but is the only downside. I'd buy it again

  • Anonymous Backcountry Edge Customer

    Likes: Very Light and small, You can pack this sleeping bag anywhere in your pack. The feel of the sleeping bag is very nice. This sleeping bag will keep you warm.

    Dislikes: Big Factor is the price.
    My wife also says, "It looks like a giant trashbag." which it does lol.