Name: Marmot Atom 40 Sleeping Bag (850 Down)
SKU: MRT-SI-MAR0113
Rating: 4.6 (5 reviews)

Product Info for Marmot Atom 40 Sleeping Bag (850 Down)

The Marmot Atom's ultra-light design and the highest quality down available have given it cult status among alpinists as a bivvy bag on extreme climbs, but its comfortable, silky fabric make it a great bag for warm-weather bivvies on casual summer road trips as well. The Atom also makes a great inner bag for bag layering. Turn any 20 degree bag into a 0 with the Atom. The Atom packs down to the size of a softball and weighs only 1 lb 5 oz.

Features of Marmot Atom 40 Sleeping Bag (850 Down):

Certified 850+ Fill Power Goose Down
Classic Trapezoidal Foot Box
Down Defender to Improve Water-Resistance in Wet Conditions
EN Tested, Full Length Zipper
Hood Draw Cord
Insulated Draft Tube
Nautilus 6-Baffle Hood
Pertex Microlight Shell and Lining Fabric, Sewn-Through Baffles
Stretch Tricot Baffles at Hood and Foot Box
Stuff and Storage Sack Included
Velcro -free Face Muff
Zipper Garage
Zipper Guards

Package Contents:

Marmot Atom 40 Sleeping Bag (850 Down)

Customer Reviews for Marmot Atom 40 Sleeping Bag (850 Down) Read All (5)

Most Recent Reviews

Can't Handle Low 50s

by Right Turn, from TN, United States Updated on September 14, 2018

Unless you sleep with your heavy jackets on, this had me shivering cold in the wee hours of the morning. Not why I invested in this light weight comfy bag. I used it twice in higher altitudes where I knew the temp would go to low 50s. The light weight and comfy feel is great but not for this price when it cant handle the cold.

Would recommend: No

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Most Recent Reviews

Great Bikepacking Bag

by John, from TX, United States Updated on May 1, 2018

I used this bag for a recent bikepacking trip in Big Bend and it was the perfect weight for the cool mid-40's nights. At 6' 1", 185lbs I recommend the Long version for a comfortable fit. The bag easily compresses into a small size: it took up about 1/3 to 1/2 of the Revelate Terrapin drybag, leaving plenty of room for extra clothes, vest, etc ... In the supplied stuff sack, ...
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Would recommend: Yes

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Most Recent Reviews

Awsome Bag

by Captain, Updated on September 24, 2015

Awesome bag. Extremely light. My pack feels better knowing I have an atom in there. Compresses very small. Takes up hardly any room

Would recommend: Yes

0 of 1 people found the following review helpful.

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Most Recent Reviews

Comfy! And so light!

by Jac, Updated on August 29, 2014

I was a bit worried about getting a "mummy" style sleeping bag because I like to move around but this was very roomy and comfortable. I was surprised at how light weight it is. I used it for the first time without a sleeping sheet and was a it cold. So hopefully once I purchase a sheet it will add some warmth.

Would recommend: Yes

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Most Recent Reviews

Great Summer Bag!

by Liz, Updated on August 29, 2014

I just completed an 8-day hut to hut Presidential Range hike in the White Mountains NH with this bag. It compresses into a size that is only slight bigger than a silk sack and provides more warmth for the cold huts we encountered. It was a like sleeping in a cloud. I can't think of anything wrong with it. Zipper zipped, the hood stayed in place, and I was never cold - what more...
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Would recommend: Yes

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