Detail Images

  • Marmot - Front
  • Marmot - Col Sleeping Bag: -20 Degree Down - Yellow Vapor/Green Wheat
  • Marmot - Front -

Current Color

  • Marmot - Col Sleeping Bag: -20 Degree Down - Yellow Vapor/Green Wheat

Marmot Col Sleeping Bag: -20 Degree Down


Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Select options
  • Select options
    • Long/Left Zip

    Select a Color:

    Select options
  • Select options
    • Yellow Vapor/Green Wheat

    5 Reviews


    Take base camp with you wherever you go.

    Take shelter at base camp in the -20 Degree Down Marmot Col Sleeping Bag when the low pressure freezes your summit plans. As the roaring whistle of the wind bangs against the tent all night, all you'll feel is the unmatched warmth of 800-fill goose down inside the Col MemBrain's waterproof breathable Pertex Shield shell. A down-filled draft tube makes sure that you head doesn't get too cold, and a hidden pocket lets you keep a few items close at hand and out of the cold.

    • 4-season sleeping bag
    • 800-fill power goose down
    • Mummy shape
    • Pertex Shield and MemBrain waterproof materials
    • Down-filled draft tube
    • Anti-snag zipper guards
    • Hidden pocket at draft tube
    • Includes stuff and storage sack
    • Item #MAR00IB

    Tech Specs

    Pertex Shield (2-layer, 30D), [lining] Pertex Microlight 30D
    800-Fill down
    Max User Height
    [regular] 6 ft, [long] 6 ft 6 in
    Draft Tube
    Storage Sack
    yes, included
    Stuff Sack
    yes, included
    Claimed Weight
    [regular] 3 lbs 14.59 oz, [long] 4 lbs 9 oz
    Recommended Use
    hiking & camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Best Winter Sleeping Bag

    • Familiarity: I've used it several times

    Can't go wrong with this one. I sleep super cold, and a lot of the time I don't have the time to cook a warm dinner before crawling into the tent. This sleeping bag has made winter camping a joy, and it looks like it will last many more years. I have tried a bunch of sleeping bags and the attention to detail really stands out on this one... Down filled draft collar, zipper guards that actually work, a footbox that has a tougher material so you can stick your boots in the bottom to dry without worry, the list goes on. I'm never cold in this bag, and the waterproof shell (not seam taped, but enough to keep tent condensation from getting the down wet) is a must-have for multi-day trips.

    Best Gift Ever

    • Familiarity: I've used it several times

    I sleep cold. Always. This bag has been comfortable at 16,500 on Kilimanjaro (probably ~0 degrees), winter camping in Utah, and for gratuitous fall camping when I just want to be extra warm - I have a western mountaineering 20 degree bag and I will often choose this bag over that one just for extra comfort. This bag packs fairly small for what it is, but if backpacking it will take up a good portion of your pack space (1/3-1/2 depending on pack size), but it is essential for sleeping comfortably in cold weather, so I always make room. The bag itself is pretty roomy for a mummy bag - allows for some movement, even with extra layers on. I really enjoy the extra warm foot box construction, which definitely helps keep the feet warm on cold nights. Ive spent many a winter night in my 10-20 degree down bags in temps no lower than 20 degrees, with a bag liner, and have still been cold. In comparison, with this bag I can sleep in similar conditions without needing extra layers of clothing or liners. Personally haven't used it in conditions colder than 0 degrees, but would use this over a zero degree bag at that temp (extra stuff space, weight and all) no questions asked.

    Tried 5, picked 1

    • Familiarity: I returned this product before using it

    Okay, so my review is based solely on "fit" for a tall guy. I bought five winter sleeping bags to test- feel, comfort and dimensions and how durable the materials "felt". In the end I kept only 1 (Marmot CWM). As I sent the 4 others back and did not try them in actual sleeping situations, I cannot comment as to their performance in cold weather- only fit and initial comfort for a 6'6" guy who weighs 215 lbs.

    I had 2 Marmot bags of the 5 and for overall feel and comfort I liked them best. I didn't go with this one because it had several down feathers in it and I was worried that it might have a small opening somewhere and would continue to leak. However, in terms of general comfort, I don't think you can go wrong with this bag. By the way- the bag looks more like a yellowish green than it was yellow.

    What is the volume of this bag (regular) compressed?