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Marmot Never Summer Sleeping Bag Video

The Marmot Never Summer Sleeping Bag's treated down insulation delivers solid performance in a lightweight, durable design. It's a great year-round bag that can handle single-digit winter nights.

Marmot Never Summer Sleeping Bag

This rugged backpacking sleeping bag features treated down insulation that delivers solid performance in a lightweight, durable design. It's a great year-round bag that can handle single-digit nights.
  • $289.00 $309.00

Item # 864080

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  • With a European Norm (EN) lower-limit rating of 3°F, the Never Summer sleeping bag is suitable for fall, winter and spring use
  • 650-fill-power duck down insulation is protected by a durable nylon shell with a water-repellent finish
  • Down is treated to resist moisture to maintain warmth in damp weather; treated down stays drier 10x longer, maintains 150% more loft and dries 30% faster than untreated down
  • Nautilus 5-baffle hood envelops your head in warmth; face muff allows hood to be cinched snug without chafing your face
  • No more midnight drawcord fumbling—smooth, flat upper cord and hard, round lower cord make hood adjustments easy
  • Stretch tricot baffles provide strength and durability for long bag life
  • Trapezoidal footbox allows down to loft fully around your feet for optimum warmth and comfort; pocket in the footbox lets you slip in a hand warmer (sold separately)
  • Stash pocket on the top chest near hood stows nighttime essentials
  • Ground-level side seams keep warm air from escaping
  • Heat bump draft tube backing full-length, snag-free zipper prevents cold air from seeping through; down-filled collar adds warmth
  • Locking, 2-way zipper prevents bag from inadvertently opening during the night
  • Marmot Never Summer Sleeping Bag includes stuff sack and large storage bag
  • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags


Marmot Never Summer Sleeping Bag

Specification Long Left Regular Left
Best use Backpacking Backpacking
EN lower limit (rating for men) 0 degrees Fahrenheit 0 degrees Fahrenheit
EN comfort (rating for women) 16 degrees Fahrenheit 16 degrees Fahrenheit
Temperature rating (F) 3 degrees Fahrenheit 3 degrees Fahrenheit
Temperature rating (C) -16 degrees Celsius -16 degrees Celsius
Weight 3 lbs. 8 oz. 3 lbs. 4 oz.
Weight - metric 1.59 kilograms 1.47 kilograms
Shell Nylon Nylon
Insulation type Down Down
Water-resistant down Yes Yes
Fill 650-fill duck down 650-fill duck down
Fill weight 2 lbs. 1 lb. 14 oz.
Lining Nylon Nylon
Sleeping bag shape Mummy Mummy
Fits up to (in.) 78 inches 72 inches
Shoulder girth (in.) 65 inches 63 inches
Hip girth (in.) 59 inches 57 inches
Stuff sack size 8.5 x 18 inches 8.5 x 18 inches
Stuff sack volume 17 liters 17 liters
Compressed volume 10.1 liters 9.7 liters
Gender Unisex Unisex

Marmot Never Summer Sleeping Bag

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Rated 3out of5
by fromNice Bag but EN rating is too LOW I tried the bag out for 4 nights in September and although I was not cold I was definitely cool (temperatures were in the 40's F). In October, I slept in a tent in the wilderness for 16 nights hunting with temperatures at night in the mid 30's and froze. I am sleeping on an REI comfort cot (best cot ever). Good thing I brought a blanket for under the bag and a duvet to cover me over the bag. The construction of the bag is great. It's also lightweight and packs very well. After this experience, I would suggest the EN rating should be more around the 32 F. Definitely not a late fall or winter bag. I have never used the REI guarantee but I will in this case. I will return the item and upgrade to a warmer expedition type Marmot bag. I would definitely recommend this bag for warmer outings. It's deluxe.
Date published: 2014-11-02
Rated 4out of5
by fromWarm and comfortable I used this for a recent 3-day backpacking excursion. I am a tall woman and have to use men's bags, which can be frustrating, as I am constantly cold. I finally decided to pay the money for a warmer bag. For this bag, I had to buy a compression sack so that I could get it down to the size I needed for hiking, but it compressed really well. Considering that it was a zero-degree bag, I didn't think it was too heavy for the price. I slept quite warm both nights. I especially like the pocket at the feet for the foot warmers. Also, I felt like I had more room in the bag to stretch than other bags I've used. Overall, I'm pretty happy with it.
Date published: 2014-04-14
Rated 5out of5
by fromFantastic Overall I've been happy with this purchase. The nylon is durable and robust, so you won't have to worry about babying this sleeping bag. I couldn't find any misplaced stitches or loose threads, and the quality used in production is evident throughout. The 650 fill down is about what you would expect, making the bag not as compressible or light as an 800 fill bag but this thing still packs down reasonably well for a 0 degree bag, especially considering the price. This same bag with 850 fill down would cost you twice as much. There are a few design features that really help make this bag outstanding. The multiple baffles around the hood and footbox help keep the down situated and maintain loft. The drawstrings around both the hood and the draft collar allow you to easily seal up body heat, both from the neck down as well as around your head. With the full length draft tube running along the zipper to further help seal in heat I imagine this bag actually going down to its rating provided you use an appropriate pad. The zippers are quality YKK ones and as long as you pay attention to them they shouldn't be snagging. The second zipper makes it easy to vent your feet/legs if you'll be using this bag on warmer nights, but if I used this bag above 25 degrees I would be sweating buckets. Again, I haven't had been able to test this bag at temperatures near its EN lower rating nor have I had a chance to see how effective the Down Defender treatment is, but I suspect both these aspects will live up to their billing. The sizing and fit on the bag is just right, at 5'10 170 the bag doesn't feel constricting but isn't filled with empty space either. All in all a good purchase if you don't want to totally break the bank but do want a quality bag that will keep you warm on winter hiking trips.
Date published: 2014-04-16

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