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Marmot
Phase 20 Sleeping Bag: 20F Down

4.578947368421052 out of 5 stars
19 Reviews

Out of Stock

Don't worry though, we have a lot more Down Sleeping Bags in stock than that.

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Shave weight, not comfort.

Made for minimalist missions where accounting for every ounce is crucial, the Marmot Phase 20 Sleeping Bag helps you sleep comfortably in cold temps without burdening your backpack with excess weight. Its ultralight, heat-maximizing design makes it ideal for arduous excursions into the backcountry and gear-intensive climbing missions.


Details

  • Featherweight backpacking sleeping bag keeps you warm without the bulk
  • Nylon ripstop construction is abrasion-resistant for long-lasting performance
  • At under two pounds with a small packed size, the Phase is truly minimal
  • Anatomically designed foot box wraps around your feet to warm them faster
  • 100% recycled nylon in the face-fabric and lining gives you a clear conscious
  • Item #MARZ96C
Responsible Collection
Recycled/Repurposed
Material
Pertex Quantum (10D recycled nylon ripstop)
Insulation
850+fill goose down
Shape
slim mummy
Zipper
full-length
Max User Height
[regular] 6ft, [long] 6ft 6in
Shoulder Circumference
[regular] 60in, [long] 62in
Hip Circumference
[regular] 58in, [long] 60in
Foot Circumference
[regular] 45in, [long] 47in
Bag Length
[regular] 80in, [long] 86in
Draft Tube
yes
Pockets
[internal] 1 stash
Pad Retainer
no
Fill Weight
[regular] 14.1oz, [long] 16.6oz
Degree
20F
European Norm/ISO Comfort Rating
33F
European Norm/ISO Lower Limit Rating
22F
Stuff Size
7.5 x 16in
Claimed Weight
[regular] 1lb 6.5oz, [long] 1lb 9oz
Manufacturer Warranty
lifetime

Overall Rating

4.5 based on 19 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 3 reviews
4 Stars - 2 reviews
5 Stars - 14 reviews

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5 out of 5 stars

July 30, 2022

warm bag

[This review was collected as part of a promotion.] I had multiple trips to the backcountry, slept warm each time.

robi
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

July 27, 2022

Great for backpacking!

[This review was collected as part of a promotion.] I’ve loved taking this bag car camping and backpacking! Light and compact in my bag and keeps me nice and toasty during summer nights!

Lill4596
marmot.com

Originally reviewed on marmot.com

3 out of 5 stars

March 20, 2022

Nice sleeping bag, but…

Nice quality bag. I just returned from an 8 day trip with nighttime temps ranging from low 30s to low 40s and I had to wear lots of extra layers every night. The bag stuffs very small, but lacks sufficient loft to keep warm even at its comfort rating. I also had lots of trouble with the zipper and hoping that improves with more use.

Chris Fey
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

February 4, 2022

Excellent lightweight, down LONG bag, beats quilts

I have quilts also, but this is definitely warmer when it gets colder; it's nice to be able to zip up and stay warm without adding your hat and multiple layers. However, when getting down to 20 degrees or so, I add layers as I sleep cold. The 25 oz weight makes it a great addition to a lightweight pack. I'm from Colorado and it's great for the high altitude cold nights.

MEE Lucifer
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

January 18, 2022

Great bag - just get the long version

Glad I ordered the long even though I normally fit in regular, (5'-11") as it is on the narrow side. Looks like a great bag in terms of quality and weights.

jijo76
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

October 17, 2021

Warm, light, and comfortable!

[This review was collected as part of a promotion.] Purchased once my old Marmot bag had worn out. I was at first skeptical that the light material would be tough enough for use on the trail, but it held up very well, even when camping with the dog! Packs down very small and is more than capable down to 20 degrees.

Sherpa
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

September 7, 2021

Lightweight and warm sleeping bag

This bag is very lightweight and kept me toasty warm over the Labor Day weekend at 11,000 feet. I don't think the nighttime temp went below 40, so I didn't test the true temp limit of this bag. I needed a lightweight 3-season bag for bike packing and this one is perfect. I really like the extra vertical space in the toe box. The interior fabric is slippery, which makes it easy to move around and shift positions without getting all twisted up in the bag (I was wearing long underwear; skin may not be as slippery). The interior pocket is nice to keep small items (like a head lamp) warm, but it's too small for a phone. I am 5;4" 125 lbs and this bag fit me perfectly.

kma in slc
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

August 22, 2021

Great quality, well made.

This sleeping bag is well made and meets and exceeds my needs on long thru hikes. I highly recommend this sleeping bag.

Tim F
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

July 7, 2021

Women's Phase 20° Sleeping Bag

tried "Women's Phase 20° Sleeping Bag" in High Sierra. 40F at night; in combination with a foam pad, a neo air xlite pad and hilleberg nallo 3gt tent: extremely comfortable and warm even for a person who easily gets cold at night.

AlexT
marmot.com

Originally reviewed on marmot.com

5 out of 5 stars

June 9, 2021

Ultra light and compact

[This review was collected as part of a promotion.] Purchased this bag for Search and Rescue missions. The description was great and the bag is very light and compact which is one of my primary needs. Very comfortable and warm. The long fit my larger frame great.

SAR Nate
marmot.com

Originally reviewed on marmot.com