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Therm-a-Rest
Questar Sleeping Bag: 0F Down

4.461538461538462 out of 5 stars
13 Reviews
$409.95
Color:Balsam

Size:

Quantity


Why We Like The Therm-a-Rest Questar Sleeping Bag

We sleep easy in the frigid backcountry with the Therm-a-Rest Questar Sleeping Bag. The zoned hydrophobic down gives us added wet-weather warmth where we need it most, while the box baffle construction maximizes loft and minimizes cold spots for cozy Zs all night long. No matter how we shift and sleep, the roomy mummy shape lets us do so freely and comfortably, while the removable SynergyLink Connectors ensure we stay atop our sleeping pad.


Details

  • Toasty, compact sleeping bag for chilly nights on the trail
  • Water-repellent ripstop fends off light precipitation
  • Lightweight hydrophobic down traps heat and resists moisture
  • Ergonomic toe box keeps your feet warm and resting naturally
  • Draft collar, draft tube, and cinchable hood help retain warmth
  • Compression and storage sacks included for convenience
  • Item #CAS00E5
Responsible Collection
Responsibly Sourced
Material
[face fabric] 20D polyester ripstop, DWR treatment, [lining] 20D polyester taffeta
Insulation
650-fill Nikwax hydrophobic duck down (RDS certified)
Shape
mummy
Zipper
left
Max User Height
[regular] 72in, [small] 66in, [long] 78in
Shoulder Circumference
[regular] 63in, [small] 58in, [long] 66in
Hip Circumference
[regular] 61in, [small] 58in, [long] 64in
Foot Circumference
[regular] 46in, [small] 44in, [long] 51in
Bag Length
[regular] 79in, [small] 73in, [long] 85in
Draft Tube
yes
Pockets
1 zippered, 1 Toe-asis footwarmer
Pad Retainer
SynergyLink Connectors (removable)
Fill Weight
[small] 1lb 10oz [regular] 1lb 13oz [large] 1lb 15oz
Degree
0F
European Norm/ISO Comfort Rating
14F
European Norm/ISO Lower Limit Rating
0F
Storage Sack
included
Stuff Sack
included
Stuff Size
17 x 10in
Claimed Weight
[regular] 3lb, [small] 2lb 12oz, [long] 3lb 3oz
Activity
backpacking, weekend camping, winter camping
Manufacturer Warranty
lifetime

Overall Rating

4.5 based on 13 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 1 reviews
4 Stars - 2 reviews
5 Stars - 9 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?

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5 out of 5 stars

January 14, 2024

Solid Bag for the Price

Familiarity:
I've put it through the wringer

I just finished using this bag on two different backpaking trips on the Appalachian Trail totaling about 3 weeks in length and this bag held up great. Packs down nicely for a 0 degree rating. Kept me warm in all conditions, a couple times I was actually hot. I think for this price point for a down fill bag you're not going to get much better. Glad to add this to my winter backpacking arsenal going forward.

Clayton L
5 out of 5 stars

April 26, 2023

We have an older Questar

We have an older Questar and the new zipper design makes it easier to zip and unzip without snagging the bag. Still as warm as the old one. Temp rating is about right. Used it down to the single digits without feeling cold wearing fleece underwear.

Keith S.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

2 out of 5 stars

August 1, 2022

Not warm enough for its rating

I purchased this bag to upgrade from a -7 synthetic bag, since I was in the market for something warmer than -7. I also purchased the NeoAir XTherm. I have taken it on numerous hiking trips and have found that If the temperature drops below 0C, I am uncomfortably cold. I have tried using it with liners but I would not consider this bag to have a comfort rating of -10C. Overall, the sleeping bag packs down to a small size, the material feels nice against the skin, and its light weight.

Leonie
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

June 21, 2022

Comfortable and warm

Plenty of space to move around and decently warm (I've used it only up to 7C). Not sure it will handle when I go to the arctic this summer, but I'm hopeful! Packs down super small and is also light. Only wish the blue was the outside colour instead of the green!

April M.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

4 out of 5 stars

March 27, 2022

Good

I had used this bag for an overnight in the Pinchot State Forest in PA. The lowest temperature was 20F with some wind chill that brought it near the bags labeled comfort rating of 15F. I used a MSR Access 1 tent (winter rated). My sleep pad system was the NeoAir XTherm Sleeping Pad (R 6.9) combined with a Z Lite SOL Sleeping Pad (R 2.0), which provided a robust R 8.9. This sleeping pad system coupled with a 0F extreme rating should have proved sufficient. However, in spite of the aforementioned system and wearing merino wool base layer (socks, pants, shirt, and face covering), I woke up at 2am shivering. Good thing I brought with me a winter sleeping bag insert. Once deployed, I never slept better. While it advertises the ability “roll around” for those restless sleepers, which it did, it did have some consequences - the snap and zipper would always come undone and cinch hole would cover mouth. These issues were enhanced by the sleeping pad straps, which ironically allowed for the movement. Overall, if used wisely with appropriate gear, this bag is sufficient and comfortable. Do I regret this purchase - NO! I happy to have this in my backpacking arsenal.

Michael K.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

March 7, 2022

Nice and cozy

This bag has kept me nice and cozy through some chilly PNW nights. Overnight temperatures in the Pacific Northwest in fall, winter, and spring rarely dip below freezing. I have used this bag in the mid 30s and it has kept me warm. I am usually cold when sleeping so I use a bag with a lower rating than the outside temperature.

John W.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

3 out of 5 stars

December 19, 2021

Really great design but just not that warm for its rating

I bought this bag to replace an older 0 degree sleeping bag that I have. My old bag has seen over 200 nights of use and has lost a lot of down and loft, so I was looking for a new bag to replace it. Long story short, after trying out this questar bag backpacking, to me it actually felt less warm than my very used old 0 degree bag. I’m a very cold sleeper so when it’s 20 degrees out I still sleep in long johns and a down jacket and pants in my bag, but despite that with this bag I was still cold. Ultimately warmth feels like the absolute top priority in a bag and I don’t feel like this bag met that requirement. That being said I loved: -how light it is - the straps to secure it to the sleeping pad - the non-stick zipper - the baffles around the neck to keep warm air from getting out - how soft the bag feels - that you get a large storage stuff sack along with the compression stuff sack that you can use to store the bag properly at home So yeah overall I’d say really great design it just seems like it could use some more down. Maybe my old 0 degree bag was exceptionally warm and was not a good benchmark, but compared to that bag, this questar was not as warm.

Ryan G.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

December 11, 2021

Génial

Après beaucoup d'essais de sacs, j'ai trouvé le top : confort en largeur et longueur,douceur, chaleur, légèreté...un vrai bonheur

a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

4 out of 5 stars

October 26, 2021

Warm

Very warm and roomy. I wish it had the ability to open to toe box to increase ventilation on those "warmer", 40 degree nights.

Alex O.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

June 12, 2019

I would buy it again.

So far I have only slept in this bag once, but it kept me warm and comfortable all night. Love it.

a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site