more»Marmot Atom
$259.00 - $309.00
MSRP: $279.00
where to buy:
User Reviews
Average Rating:
Reviewed by 3 Trailspace users
So far as I am concerned Marmot is the Technical gear…
Rating:
Design: Mummy
Fill: 850 +
Temperature Rating: 40 degree
Weight: 1 lbs 4 oz
Price Paid: $150
So far as I am concerned Marmot is the Technical gear leader these days. Before I would have told you this was The North Face, but everything Marmot builds or creates is just better. This bag is no different.
I have been using the Marmot Helium bag but wanted a summer bag as well. I thought long and hard about getting a down summer bag. The Helium I use in below freezing temps, so not too much to worry about with water soaking the down. The Atom will be used in rain storms so you better have a good tent that’s going to stay dry if you use this bag.
This bag is everything as advertised. It's as roomy as the Helium (I'm 6’1" and 240 lbs) and I am very comfortable in the long version Atom. This thing packs down to nothingness so much so I have been able to downsize my backpack. The room that is normally reserved for sleeping bags of the past is now used for other stuff. As a result I just don’t need as much room. Temperature rating is again understated if anything. A pair of long johns, a cap, and I think I'd be happy down to 25 degress.
The reason that this bag is better then the Helium is because Marmot somehow found a way to drop the price of the bag compared to in the past. The reason it's worse is for some reason Marmot can no longer guarantee 900 fill down.
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Great all around bag! Like the other reviewers, I…
Rating:
Design: Mummy
Fill: 850+
Temperature Rating: 40
Weight: 1lb 3 oz
Price Paid: $150
Great all around bag! Like the other reviewers, I took my Atom down to the mid 30's and was very comfortable. Weighs nothing and extremely comfortable; plenty of room. I'm extremely impressed with this bag, I might just go buy a Helium for those colder nights.
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This bag is as promised. I slept comfortable in temps…
Rating:
Design: mummy
Fill: 850 fill down
Temperature Rating: 40 degree farenheight
Weight: 16 ounces
Price Paid: $189
This bag is as promised. I slept comfortable in temps in the mid to lower 30's. This bag also packs down to next to nothing, don't use the stuff sack that comes with it because it's too big, you can go much smaller.
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Specs
Specs
| Regular | Long | regular | long | |
|---|---|---|---|---|
| Weight | 1 lb 5 oz / 610 g | 1 lb 8 oz / 680 g | - | - |
| Fill Weight | 8 oz / 226 g | 10 oz / 283 g | - | - |
| Temperature Rating | 40 F / 4 C | 40 F / 4 C | - | - |
| EN Comfort | 50.5 F / 10.3 C | 50.5 F / 10.3 C | - | - |
| EN Lower Limit | 43.2 F / 6.2 C | 43.2 F / 6.2 C | - | - |
| EN Extreme | 18.7 F / -7.4 C | 18.7 F / -7.4 C | - | - |
| Fill | 850 Fill-Power Down | 850 Fill-Power Down | - | - |
| Shape | Mummy | Mummy | - | - |
| Max User Height | - | - | 6 ft 0 in / 180 cm | 6 ft 6 in / 200 cm |
| Hip Girth | 58 in / 147 cm | 58 in / 147 cm | - | - |
| Foot Girth | 40 in / 101 cm | 40 in / 101 cm | - | - |
| Price | $279.00 USD | $299.00 USD | - | - |
Description
The Atom is a down warm weather (above 35°f) bag made by Marmot. It has an average rating of 5 stars (out of 5), based on 3 user reviews
Manufacturer's Description
Retailers' Descriptions
Here's what other sites are saying:
Free Shipping. Marmot Men's Atom 40F Sleeping Bag DECENT FEATURES of the Marmot Men's Atom 40F Sleeping Bag Filled and Finished in Santa Rosa, California Certified 850+ Fill Power Goose Down EN Tested Sewn-Through Baffles Nautilus 6-Baffle Hood Classic Trapezoidal Foot Box Hood Draw Cord Full Length Zipper Insulated Draft Tube Stretch Tricot Baffles at Hood and Foot Box Velcro-free Face Muff Zipper Garage Stuff and Storage Sack Included Zipper Guards The SPECS Temperature Rating: 40deg F / 4deg C Comfort: 50.5deg F / 10.3deg C Lower Limit: 43.2deg F / 6.2deg C Extreme: 18.7deg F / -7.4deg C Zip Option: LZ Weight: 1 lb 5.52 oz / 610 g Fill Weight: 8 oz Loft: 4in. Girth: 62in. Hip: 58in. Foot: 40in. Stuff Sack: 12 x 6in. Material: 20 Denier 100% Nylon Mini Ripstop DWR 1.1 oz/yd, Lining: 20 Denier 100% Recycled Polyester Mini Ripstop DWR 1.0 oz/yd, Insulation: 850+ Fill Power Goose Down The SPECS for Regular Size: 6'0in. The SPECS for Long Size: 6'6in.
- Moosejaw
The Marmot Atom forty degree sleeping bag's ultra-light design and high quality down have given it cult status among alpinists as a bivy bag on extreme climbs, but its comfortable, silky fabric make it a great bag for warm-weather bivies on casual summer road trips as well.850+ Fill goose down.Sewn through baffles.Nautilus hood.Hood draw cord.Velcro -free face muff.Full length zipper for easy in/out.Down filled draft tube.Zipper guard keeps the fabric from getting caught in the zipper.Classic trapezoidal footbox for more room.Ground level side seams.Stuff sack and storage sack included.
- Campmor
The Marmot Atom 40-Degree Down Sleeping Bag relies on high-loft, premium-quality 850-fill goose down for its incredible warmth-to-weight ratio. An ultralight ripstop shell holds the insulation in place without adding much weight or bulk for easier compressibility. Take the Atom along on your next summer backpacking tripAAAit's so compact and lightweight, you'll have no trouble finding space for it in your pack.
The Atom's ultra-light design and its high quality down 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.
Where to Buy
Buy Online
Compare prices from 10 outdoor retailers:
| Store | Product Description | Price |
 Moosejaw |
Men's Atom 40F Sleeping Bag | $289.00 | Buy Now |
 Campmor 2 purchase options: |
Atom 40 Degree Down Sleeping Bag Regular | $259.98 | Buy Now |
| Atom 40 Degree Down Sleeping Bag Long | $269.98 | Buy Now |
 Backcountry.com |
Atom Sleeping Bag: 40 Degree Down | $260.06 | Buy Now |
 SunnySports 2 purchase options: |
Atom 40F 850 Down Sleeping Bag - Regular Size - Left Zipper | $279.00 | Buy Now |
| Atom 40F 850 Down Sleeping Bag - Long Size - Left Zipper | $299.00 | Buy Now |
 REI |
Atom Sleeping Bag | $309.00 | Buy Now |
 Mountain Hideaway |
Atom Sleeping Bag | $259.00 | Buy Now |
 RockCreek 2 purchase options: |
Atom 40deg Sleeping Bag (Reg.) | $288.95 | Buy Now |
| Atom 40deg Sleeping Bag (Long) | $308.95 | Buy Now |
 Altrec Outdoors |
Atom 40 Degree Sleeping Bag | $308.95 | Buy Now |
 Massey's Outfitters |
Atom Long Sleeping Bag | $308.01 | Buy Now |
 Rocky Mountain Trail |
Atom Long | $308.90 | Buy Now |
