Marmot Plasma 30 Degree Sleeping Bag


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Ultra-light, ultra-warm and designed for superior performance in the backcountry, the Marmot Plasma 30 Degree Sleeping Bag is made for summers in the wilderness. Constructed with an incredibly lightweight and water resistant Pertex fabric shell and liner, this goose down sleeping bag is filled with high quality 900+ fill-power down. Marmot’s new, full-length vertical baffles help reduce the weight of the bag and keep the down right on top of you where you need it most throughout the night. This Marmot down sleeping bag has an insulated draft tube along the full-length zipper and an insulated collar to keep warm air trapped inside the bag. Whether you’re hiking the PCT or running a fast-and-light 100-mile weekend trip, the 1.5 pound Marmot Plasma 30 Degree Sleeping Bag will become a prized component of your ultra-light sleep system.


  • Temperature Rating: 30 degrees F, -1 degree C
  • Insulation: 900+ fill-power goose down
  • Shell Material: 10 Denier 100% Nylon Micro Ripstop DWR 0.8 oz/yd
  • Liner Material: 10 Denier 100% Nylon Micro Ripstop DWR 0.8 oz/yd
  • Shape: Mummy
  • EN Tested
  • Insotect Flow™ vertical baffle system reduces weight and transfers heat from the core of your body to your extremities
  • Flow gate construction allows user to manually shift down to preferred locations
  • 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 eliminates cold leaks through the zipper
  • Hood draw cord positioned for easy access
  • Insulated collar with easy access cord engineered to close without Velcro®, keeps warm air trapped in your bag
  • Velcro® free face muff keeps the drawcord and zipper away from your face
  • Two way zipper sliders for venting and mating of bags, reversible slider tabs for easy use inside or outside of bag
  • Two hang loops on the outside of foot box for airing out your bag
  • Length: 6 ft (regular), 6 ft 6 in (long)
  • Hip Girth: 58 in, 147 cm
  • Foot Girth: 43 in, 109.22 cm
  • Fill Weight: 10.41 oz, 295 g
  • Weight: 1 lb 6.44 oz, 636 g

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Review Summary

5 out of 5

1 Reviews

  • Build quality: 1
  • Great design: 1
  • lightweight: 1
  • packs small: 1

  • Cost: 1
Features: 5 / 5
Quality: 5 / 5
Durability: 4 / 5
Fit: 4 / 5
Weight: 1 / 5

1 Ratings & Reviews

Durability: 4 / 5
Features: 5 / 5
Quality: 5 / 5
FitPads: 4 / 5
Weight: 1 / 5
from Florida, Montana
55-64 yrs

great lightweight bag
August 14, 2011

When I first got this bag I thought " How can something this light keep me warm?" Well, after 6 nights in 30* weather, I've only had to zip it up once, and that was in foggy, damp weather while sleeping in just my boxers and a t-shirt. The bag stays dry, packs down to almost nothing, and the material feels great. I've seen almost no down loss (2 little feathers). Pricey, but well worth it. If you are a cold sleeper you might want to go with the plasma 15* for some extra warmth, but so far I haven't needed it. Snug fit, but plenty of room for my 5-9, 180lb frame. All in all a great bag to lighten your load without sacrificing comfort and warmth.

Pros: Great design, Build quality, Performance, lightweight, packs small, Cons: Cost

Also Available

Marmot Plasma 30 Degree Sleeping Bag Photo

Black/ Hemlock.

Available sizes, while supplies last, include size reg and size long: reg, long.

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