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  • Marmot - Never Summer Sleeping Bag: 0 Degree Down - Dark Rust/Mahogany
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  • Marmot - Never Summer Sleeping Bag: 0 Degree Down - Dark Rust/Mahogany

Marmot Never Summer Sleeping Bag: 0 Degree Down

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    • Dark Rust/Mahogany

    11 Reviews


    Make an effort to ditch the crowds.

    Summer might bring mild weather, but it also brings crowded trails, so use frigid winter temps to your advantage and head to the mountains with your Marmot Never Summer 0 Degree Down Sleeping Bag once the temperatures drop. Stuffed full of Marmot's water-resistant Down Defender 650-fill down, the Never Summer is rated to keep you warm when temperatures drop to single digits, and its ripstop fabric has been treated with a DWR coating for a bit more protection from light snow flurries and condensation that might accumulate along the walls of your tent. The Never Summer bag has a basic mummy shape with an anatomic footbox to give your feet some extra room to roam, a Nautilus hood that cinches down tightly around your noggin, and a full-length zipper that's backed by a snag-free insulated draft tube to help prevent heat loss through the zipper. There are also internal stash pockets the make it easy to keep your headlamp and a small midnight snack where you can reach them.

    • 0-degree temperature rating
    • 650-fill down insulation with Down Defender treatment
    • Mummy shape with anatomic footbox
    • 30D ripstop nylon with DWR finish
    • Nautilus multi-baffle hood
    • Full-length left- or right-handed zipper
    • Ground level side seams
    • Internal stash pockets
    • Item #MAR00T6

    Tech Specs

    30D nylon ripstop, DWR finish
    650-fill down, Down Defender treatment
    Max User Height
    [regular] 6 ft, [long] 6 ft 6 in
    Shoulder Circumference
    [regular] 62, [long] 64
    Hip Circumference
    [regular] 56, [long] 58
    Foot Circumference
    [regular] 41, [long] 43
    Bag Length
    [regular] 83, [long] 89
    Draft Tube
    1 interior
    0 F
    Stuff Sack
    Stuff Size
    8.5 x 18 in
    Claimed Weight
    [regular] 3 lb 1 oz, [long] 3 lb 4 oz
    Recommended Use
    winter camping, backpacking
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Warning: its hard to wake up in the morn

    • Familiarity: I've put it through the wringer

    So comfortable and warm. Its rated for 0 degrees, so only use this bag in fall and winter obviously. If you're going to be camping in very cold regions, get a bag rated for -15 or lower if you run cold... On super cold nights I freeze my ass off in this bag. Other than that, I love the color and the material. Its very durable and lightweight, compact-able. Yeah.

    Warm sleeping bag with reasonable weight

    • Familiarity: I've used it once or twice and have initial impressions

    very comfortable and warm bag especially at this weight and price point. Kept me comfortable in the teens (farenheit) with no additional liner necessary. Construction quality seems good but haven't used it long enough to comment on durability yet.

    Nice and toasty.

    • Familiarity: I've used it once or twice and have initial impressions

    For as big and warm as this thing is I was surprised at how packable it was. I got to use it a couple times this fall and was very pleased with it's performance. I got the extra long one, I'm 6', and more than enough room. It was around 30° so I didn't get near the bags rating limit but from what I can tell the bag is solid.


    • Familiarity: I've put it through the wringer

    Used: in Maine on the AT for 1 month. Shenandoahs on the AT for another cold week.

    Size: I'm 5ft6in, and 130lbs. I originally bought the bag in the long version, but then exchanged it for the regular. Much better for me, the feet are actually in the foot box. It is a little tight around the shoulders IF you wanted to stretch. I tend to stay compact so it was perfect.

    TEMPERATURE: Very cozy and warm. I spent 1 week in the Shenandoahs and the temperatures were close to 0Celsius (32F) at night. I was eager to get into the bag at night. I still had my first layer on and I was very cozy and slept well. The oustide was a little humid in the morning, but dried quickly and actually never made it to the inside anyways. The fluffy-ness of the down makes it cushiony, so very comfy.

    USE: I toss and turn a lot. The bag turned with me, yet compared to another bag I have, I never feel the zippers on this one, even if completely on it at night. The strings to pull the bag around your face is ok. There's only 1, but the top string is different than the bottom string. I found it a bit annoying to pull one vs. the other, as they go through the same clip. With practice, it'll be ok.

    side note: it has that distinct chemical smell for a brand new product. It still has the smell. I like the smell but it could annoy some.

    All in all, I love it!

    ps: I do agree the little bag it comes with is useless. Buy your own compression bag, or just shuv it in the bag and compress with the rest on top! haha

    Great bag, but Regular is too small

    • Familiarity: I've used it several times

    The bag is great for what you pay for it. I sweated my butt off in long johns and a t-shirt on 20 degree nights. Based on that it should keep me comfortable if I'm wearing all my layers when the temps dip into the single digits.

    Here's why I didn't give it 5 stars:
    1. The stuff sack it comes with is useless. Buy a real compression sack because the bag has a mind of its own and really prefers to take up as much space as it can. I tried putting it in the flimsy little stuff sack it came with and within thirty seconds it had popped out and was spread out across my floor.
    2. I do NOT fit in the regular bag. I'm 5'10 and 160 pounds, pretty slim guy, most of the weight is scrawny muscle. But I am too long for the bag. If I push my feet hard against the bottom of the bag, my girlfriend can work the hood over my head, but I feel like super trapped. It's also nearly skin tight around my thighs. I can't spread my legs more than a couple inches. I get the phrase mummy bag means something, but this is one heck of a tight bag (or maybe I'm just claustrophobic).

    Pros: toasty, light enough for the price, compresses well (with a real compression sack)
    Cons: runs small, the fabric doesn't feel super strong.

    Good bag

    • Familiarity: I've put it through the wringer

    I do a fair amount of winter camping and this bag is usually what I take with me. I use a 45 degree bag inside of this one if I feel the temps might be getting really low. With a 45 degree bag as a liner I've slept out in the -30's in Yellowstone on top of 10+ feet of snow. It works well and is really durable. I am always looking at getting another one when mine finally has had it but it keeps on trucking.

    Very warm, recommend compression sack

    • Familiarity: I've used it several times

    The Marmot Never Summer sleeping bag does exactly what it's meant to do. I used this on my last backpacking adventure and it was fantastic! It was a little too warm one night, which kind of made it tough to sleep, but I still can't complain when you're too warm. It did it's job well!
    The only complaint I have regarding this sleeping bag is the size of the stuff sack. It's very long. Too long for my pack. If you are going to use this bag on backpacking trips, I would recommend that you invest in a compression sack to make it easier to fit in your pack.
    The bag is super light, which makes it easy for backpackers. When you take it out of your stuff sack, it takes maybe 10 minutes to "fluff" to its normal size.
    I definitely recommend this bag to anyone that is interested in buying it! Great buy!

    Excellent bag

      This is a killer deal for a 0 degree bag. I am 5'9 and the regular bag fits very well. The 650 fill insulation is slightly heaver than other bags, but I can barely tell the difference and the price point is much better.

      Great mountain bag

      • Familiarity: I've used it several times

      I slept in this bag for 8 nights on Mt. Shuksan, in the northern cascades. Lowest temps got was in the teens. This bag kept me very warm, especially in the feet. I usually have cold feet when I sleep, but the footbox on this bag is well insulated, so I had cozy toes at night.
      The head was not as warm. I slept with a thicker hat than normal. I think the weight of my head compressed the down and caused my head to be cold. Not an issue, I just wore a hat.
      The water-resistance was great. I expect that, since it's a brand new bag. My tent leaked something fierce, and every morning my tent contents were wet. The outside of the bag would be covered with condensation, and some parts were even laying in a small pool of water at times. The interior of the bag stayed dry the whole time, keeping me nice and warm.
      I'd definitely recommend this bag. Just bring a hat.

      Excellent Down Fill Bag At A Great Price

      • Familiarity: I've used it once or twice and have initial impressions

      I used this several nights in 15-20F degree weather and it was superb! I have limited experience with real Down fill bags and have traditionally used only synthetic bags. As expected, this bag is considerably lighter, packs smaller and is very comfortable through varying temperature ranges. The zipper seems well designed to try and minimize snagging. The zipper baffles did a great job at keeping out the creeping cold.

      Contents includes both a standard stuff sack and large storage sack. I used a large Sea-to-Summit eVent compression dry sack and it packed down to half the volume of the stuff sack.

      I am 5'11", 165lbs and opted for the "long" bag just to have some extra room. I probably could have been comfortable in the standard length bag but am happy with the extra lenght and minimal added weight. The footbox was ample for my size 12US feet and the hood was also a good size for my 7 3/8" noggin.

      Cons: Slightly heavier than a 800+ Down bag

      Pros: Good fit, great quality, packs small, handles damp environments well, excellent price for performance

      Good for Backpacking, Winter Sports, Moderate Mountaineering