Therm-a-Rest Questar 0 Sleeping Bag

About This Item

Temp Rating

-5 to 10 Degrees

Insulation Type

Down

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SPECS

  • Shell Fabric: 20D Polyester w/ DWR
  • Lining Fabric: 20D Polyester Taffeta
  • Fill Material: 650 Fill Duck Nikwax Hydrophobic Down RDS
  • Packaged Dimensions: 8 in. x 10 in./ 20 cm. x 25 cm.

Temperature limits

  • Comfort: -10C/ 14F
  • Limit: -18C/ 0F

DESIGN & DETAILS

  • Questar™ 0F/-18C Sleeping Bag sets a new performance standard for comfort with an ultra-portable design
  • With Additional Room for Multiple positions (W.A.R.M.) fit allows for natural sleep positions while maintaining thermal efficiency
  • 650 Fill Nikwax Hydrophobic Down™ absorbs 90% less water and dries 3 times faster without using dangerous PFCs
  • Box baffled construction with mesh walls to maximize loft and minimize cold spots
  • Toe-asis™ foot warmer pocket utilizes a baffled pocket of insulation that rapidly warms cold feet
  • Quilt and blanket loops to customize your sleep system by layering quilts or tech blankets for increased warmth
  • SynergyLink™ connectors integrate the bag and mattress for optimal efficiency and comfort; removable for versatility
  • Maximized zone insulation that saves weight by intentionally placing fill where you need it most
  • Heat-trapping draft collar, full-length zipper draft tube, snag-free zipper, cinchable hood and external zip pocket
  • Certification that waterfowl in down supply chain are treated humanely
  • Compression sack and storage sack included
  • Brand : Therm-a-Rest
  • Country of Origin : Imported
  • Exclusive To : G3
  • Web ID: 21TARUQSTR0RGXXXXCSL
  • SKU: 22401793
Sleeping Bag SizeRegular Long
ShapeMummyMummy
Minimum Trail Weight2 lbs. 11 oz.3 lbs. 1 oz.
Temp Rating 0° F0° F
Fill Weight1 lb. 10 oz.1 lb. 13 oz.
Insulation TypeDownDown
Fill Power650650
Shoulder Girth63 in. 66 in.
Hip Girth61 in.64 in.
Fits Up To61 in.64 in.
Compressed Volume6.9L 6.9L
Shell Fabric20-denier ripstop polyester20-denier ripstop polyester
Zipper LocationLeftLeft
Stuff Sack Included YesYes
Stuff Sack Size 10 x 8 in10 x 8 in

REVIEWS

4.6
100%
Recommended

16 Reviews

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.

Verified Purchase

Very Nice

I bought this bag about a month ago and plan on using it on a backcountry elk hunt this coming up season in Colorado. The bag needed to be lightweight, comfortable, warm, and durable. This bag is all those things very happy with it!

Leonie

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.

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!

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.

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.

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.

Génial

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

Verified Purchase

Buy It

I slept in this bag last weekend 15-20f, kept me nice and toasty. I purchased the long and had plenty of room to roll around inside the bag.

Verified Purchase

Excellent Sleeping Bag

I purchased this sleeping bag prior to going on a few camping trips in the Colorado Rockies in NOV 2021. This bag was used with a thermarest neoair xlite and kept me warm on multiple nights below freezing, including a night that got below 7F. The foot box is awesome and the bag is spacious and warm. It packs down small and is light. I highly recommend this bag. My only nitpick for this bag is that I wish the zippered stash pocket was on the inside of the bag.

Alex O.

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.

Verified Purchase

Comfortable And Warm

I have used this sleeping bag down to 20F with an Xtherm and was very warm. The wider shape at the top is very comfortable for side sleeping. The foot box is amazing and warms my feet up fast. The only negatives were that the down in the neck baffle shifts to the sides easily and it had some feathers inside of it after the first couple of nights but seems to have stopped.

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.

Alexander

Compressible And Warm

Packs down very small and is quite warm. The straps for your air mattress are a real nice touch especially if you move around a lot.

Greg F.

Wild & Scenic Questar

This bag was built for versatility and comfort. Each year I spend over 50 nights sleeping outdoors - mostly under the stars, on a cot, in a bag next to a wild and scenic river. The Questar was the bag I took on my recent 100 mile river trip down the Middle Fork of the Salmon River in Idaho. We started high on the river - with morning temps in the low 30's that brought us a heavy layer of frost.... a week later in lower altitude, mornings were in the high 40's and the frost was replaced with dew. The bag performed as well as the wood boat I rowed the length of the Middle Fork. I'm a fan. It will be with me on all my Wild and Scenic River adventures this year - including the Eleven Point, the Rogue, and the Colorado in the Grand Canyon.

Read All Reviews (16)