Detail Images
Marmot Always Summer Sleeping Bag: 40F Down
Select a Size
Select a Color
![]()
Team Red/Sienna Red - Unavailable
Free Shipping on orders over $50*
Lightweight and super-packable for warmer-weather adventures.
If you spend more time falling asleep to the whisper of gentle summer breezes than the howl of winter winds, the Marmot Always Summer 40-Degree Down Sleeping Bag is the perfect combination of warmth, weight, and packability. It'll easily keep you comfortable down to 43 degrees, thanks to 650-fill goose down, and it won't turn you into a popsicle if it gets covered in morning dew when you're sleeping under the stars since the insulation's been treated with water-resistant Down Defender. As a bonus, it weighs under two pounds and packs down to the size of jacket, so it won't turn your small summer pack into a monstrous burden.
"Summer bag" isn't slang for "slopppily designed," though. The Always Summer has most of the features found in Marmot's cold-weather bags, like an insulated draft tube, face muff, and stretchy tricot baffles that let you move around freely while you're dreaming about pole vaulting. It also uses Marmot's trapezoidal footbox, which is wider in the toes and narrower in the heels, letting your feet move comfortably without the need for extra material and weight. The five-baffle hood's also warm without adding unnecessary bulk, and the locking drawcord let you seal up your bag tightly for a snug night's sleep.
- 43-degree EN comfort rating
- 650-fill down with Down Defender water-resistant treatment
- Mummy bag with ground-level side seams
- 40D nylon ripstop fabric
- Five-baffle Nautilus drawcord hood, insulated draft tube, and face muff
- Trapezoidal footbox construction
- Stretch tricot baffles
- Stash pocket
- Hang loops
- Item #MAR003S
- Material
- 40D nylon ripstop, Down Defender treatment
- Insulation
- 650-fill duck down
- Shape
- mummy
- Zipper
- right, left
- Max User Height
- [regular] 6 ft, [long] 6 ft 6 in
- Shoulder Circumference
- [regular] 63 in, [long] 65 in
- Hip Circumference
- [regular] 57 in, [long] 59 in
- Foot Circumference
- [regular] 41 in, [long] 43 in
- Bag Length
- [regular] 85 in, [long] 91 in
- Fill Weight
- [regular] 9.87 oz, [long] 11.85 oz
- Degree
- 40 F
- European Norm Comfort Rating
- 45 F
- European Norm Lower Limit Rating
- 37 F
- Storage Sack
- yes
- Stuff Sack
- yes
- Stuff Size
- 7 x 14 in
- Claimed Weight
- [regular] 2 lb
- Recommended Use
- camping, backpacking
- Manufacturer Warranty
- lifetime
Tech Specs
What do you think about this product?
View
April 3, 2018
Great for Lighweight Summer Backpacking
- Familiarity:
- I gave it as a gift but have feedback to share
Bought this item for my dad on his summer bike tour around Lake Eerie. It is super lightweight and with the help of a compression sack shrinks down to a size less than a nalgene bottle. Works great so far.
Derek R
March 31, 2017
Get this if you want to look like a bird
- Familiarity:
- I've used it several times
Not a terrible sleeping bag and temperature rating is accurate. Bag is lightweight and fits into a very small size. Unfortunately, it sheds feathers like crazy, to the point where I refuse to use it anymore. I've used it a few times and each time I've emerged looking like a bird. Wish I could return it, but it's been too long.
P
November 13, 2015
Favorite bag for warmer nights!
- Familiarity:
- I've put it through the wringer
This bag is definitely a comfier bag than most. The 40D nylon ripstop fabric is a bit softer rather than the stuff covered in some DWR. I am 5'10" and have the regular that fits like a glove. May feel a bit tight to some but if you like feeling a bit more snug in your sleeping bags this is a great fit.
Tim Gage
December 15, 2014
Fill less than expected
- Familiarity:
- I returned this product before using it
Like the lightweight of this bag & quality. The down filling is inconsistently distributed in the panels. Even after letting the down to puff up / out after storage!
KazMo
November 22, 2014
A little narrow for me
- Familiarity:
- I've used it several times
I've taken this bag on a few hikes now. The quality is good, but I don't think I understood how narrow this bag was when I bought it. If you're someone who likes to move your legs around while you sleep then this may not be your bag.
James M.
September 21, 2014
Good!
- Familiarity:
- I've used it several times
Works great at temperatures around 40-60F. I'm 187cm and I went for the long version and I have lots of space in width and length, a bit too much even. Zipper is sometimes tricky to get closed from inside. Otherwise great bag!
Aleksandrs Kobilanskis
June 5, 2014
What is the zipper length?
What is the zipper length?
Mark E.