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Last updated January 1st, 2020
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The Marmot Never Summer Sleeping Bag is a zero degree sleeping bag for winter camp and hike adventures. The outdoor world may be cold and snowy, but inside your tent and this sleeping bag you'll be cozy and warm. The mummy shape brings the bag in close for thermal retention while the 650 fill power down with Down Defender is the insulation that not only brings the heat, but resists moisture if the tent condensation threatens or snow finds its way into the tent. Pull the hood close and if you start to get too warm, open up the secondary zipper and fold down to release excess heat.
Products on Sale are Discontinued Styles or Colors.
The Marmot Never Summer Sleeping Bag is a zero degree sleeping bag for winter camp and hike adventures. The outdoor world may be cold and snowy, but inside your tent and this sleeping bag you'll be cozy and warm. The mummy shape brings the bag in close for thermal retention while the 650 fill power down with Down Defender is the insulation that not only brings the heat, but resists moisture if the tent condensation threatens or snow finds its way into the tent. Pull the hood close and if you start to get too warm, open up the secondary zipper and fold down to release excess heat.
Products on Sale are Discontinued Styles or Colors.
FEATURES of the Marmot Never Summer Sleeping Bag
Certified 650 fill power down
Anatomically designed footbox with wrap-around construction increases warmth
Nautilus multi-baffle hood
Full length locking YKK two way zipper with zip-guard slider
Down defender to improve water-resistance in wet conditions
EN tested
Internal stash pocket
Snagless insulated draft tube
Ground-level side seams
Hood draw cord
Product Specifications
Stuff / Compression Sack Dimensions:
8.5 x 18 in.
Stuff / Compression Sack Volume (Regular):
9.7 liters / 591 Cubic inches
Features:
Water-resistant, Zipper Garage
Bag Weight (Regular):
51 oz
Bag Weight (Long):
53 oz
Sleeping Bag Lining:
30D 100% Nylon DWR
Fill Weight (Regular):
34 oz
Fill Weight (Long):
48 oz
Max User Height (Long):
78 in.
Foot Circumference (Long):
50 in.
Shoulder Circumference (Regular):
62 in.
Hip Circumference (Regular):
57 in.
Shoulder Circumference (Long):
64 in.
Hip Circumference (Long):
59 in.
Best Use:
Backpacking
Insulation:
Down
Temperature Rating:
0 - 10 Degrees Fahrenheit
Exact Temperature Rating:
0 Degrees Fahrenheit
Sleeping Bag Shape:
Mummy
Max User Height (Regular):
72 in.
Fill Details:
650 Fill Power Duck Down
Product Reviews
Rated 5 out of
5 by
OutdoorLover7 from
Tested down to -15°C / 5°F[This review was collected as part of a promotion.] Taken this bag out on many mountaineering trips in the PNW, so far it has kept me toasty warm down to -15°C/5°F - with R7 sleeping mat system. So far very happy. The small zippered pocket on the inside top is awesome for keeping small important items close. Could use a smaller lighter stuff sack though.
Date published: 2022-05-10
Rated 5 out of
5 by
Sponge Bob from
Toasty[This review was collected as part of a promotion.] The weather only got down to the mid 30s but I was toasty and even hot at times.
Date published: 2022-04-12
Rated 4 out of
5 by
James K from
4 stars, just a bit big and heavy[This review was collected as part of a promotion.] A tad heavy, but really pretty great all-around for me on solo multi-day colder mountain backpacking.
Date published: 2022-04-07
Rated 5 out of
5 by
PPD 1 from
I’m feeling hot hot hot[This review was collected as part of a promotion.] Awesome bag, great price, fast shipping. Just what I needed
Date published: 2022-04-03
Rated 5 out of
5 by
Eric R from
Comfortable, warm, tad bit tight in the legs[This review was collected as part of a promotion.] Bought this for my wife. We tested it out in one night when it dropped to 17 degrees, and she stayed warm. Not the lightest, but packs small enough and when planning for cold weather. Weight isn't my biggest factor over comfort. The only thing she mentioned what the cut by the legs seemed a little tight. There's not much room if you're looking at layering much. This is dependent on size of course. Overall, a good product.
Date published: 2022-04-02
Rated 5 out of
5 by
Tttt from
Good for snow camp[This review was collected as part of a promotion.] I used it for my first snow camp around 10F. with two layers of mat, I experienced very comfortable night.
Date published: 2022-04-01
Rated 5 out of
5 by
Japaris146 from
Perfect 4 season backpacking bag!I ordered a sleeping bag from another brand and when it arrived I was very disappointed. Not what was advertised or what I was looking for. I retuned it and ordered the Marmot Never Summer bag as a “second choice”. I definitely should have bought this in the first place! It is exactly what I believe to be the perfect four season backpacking bag. Great features, very lightweight, and definitely warm as rated. I have spent three nights in this bag, one that was down to 10 degrees (F). I wore a light fleece base layer, socks, and a fleece hat. I never woke up cold! The only feature about this bag that seems unnecessary is the pocket in the footbox for hand warmers. I used it and honestly noticed no difference. The internal chest pocket definitely is a great feature though!
Highly recommend this bag!!
Date published: 2022-03-07
Rated 5 out of
5 by
Pdkd from
Great bag at great priceHaven’t use this bag extensively yet, however, I cowboy camped at 20F with 12F wind chills, and camped at 20F wearing a base layer and a hat and was very warm. It packs down a little large and I think I’m going to buy a compression sack to squeeze it down a little more. I like the roomy footbox but think it might lead to colder feet, I just throw a shirt or something down there and it’s fine.
Hey there, thanks for your question.
The Marmot Never Summer Sleeping Bag comes with an 8.5 x 18 in stuff sack but the stuff sack does not have extra compression straps. If you wanted to upgrade to a compression sack for this you would want to go with something like this:
https://www.moosejaw.com/product/sea-to-summit-ultra-sil-compression-sack_10046648
I hope this helps!
Answered by: Gator
Date published: 2022-03-08
Are these bags mateable, if you have left and right zippers?
Asked by: BraveCowboy
Great question! YES, two of these sleeping bags can be paired together. Just make sure one is a left zip and the other is a right zip :)
Answered by: Foxxy Cleopatra
Date published: 2020-11-30
How is this bag for use in all seasons?
Asked by: Brami
Hey there Brami,
Great question. This bag is best used in cooler/cold weather. It is temperature-rated to 0 degrees F, which makes it a great Fall/Winter/early Spring bag. Hope that helps!
