Free Standard Shipping for Orders Over $50
Home Page

Detail Images

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

Current Color

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

$329.95 - $369.95

Select a Size

  • Short
    - Unavailable
  • Regular
    - Unavailable
  • Long
    - Unavailable

Select a Color

  • Balsam - Unavailable

Free Shipping on orders over $50*

Cozy refuge.

Whether the seasons have turned colder or you're headed to a higher altitude, bring the Therm-a-Rest Questar 0 Degree Down Sleeping Bag on your next trip for a toasty night's sleep. This mummy bag is insulated with 650-fill down that provides a high warmth-to-weight ratio, so you can easily compress it into your pack and still enjoy its warmth when it's time to make camp. The down has been treated with Nikwax to help it stand up to moisture, and the fabric has a DWR finish to help dew roll off instead of seeping in. The ThermaCapture seams work with zoned insulation to increase warmth retention without adding bulk, and the SynergyLink Connectors allow you to attach your pad for extra insulation. For extra comfort, Therm-a-Rest added its Toe-asis feature that gives your feet an insulated pocket for warmth in your extremities.

  • Sleeping bag for chilly nights on the trail
  • 650-fill down is lightweight and high-loft
  • Nikwax Hydrophobic Down stands up to moisture
  • ThermaCapture seams trap heat without adding bulk
  • SynergyLink Connectors attach the bag to your pad
  • Zoned insulation protects key areas while reducing weight
  • Toe-asis pocket keeps your feet toasty
  • Item #CAS00E5

[face fabric] 20D polyester ripstop, DWR, [lining] 20D polyester taffeta
650-fill Nikwax Hydrophobic Down
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
Pad Retainer
SynergyLink Connectors (removable)
European Norm Comfort Rating
European Norm Lower Limit Rating
Storage Sack
Stuff Sack
Claimed Weight
[regular] 3lb, [small] 2lb 12oz, [long] 3lb 3oz
Recommended Use
backpacking, weekend camping, winter camping
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 5

Outstanding bag

Just returned from the southern Sierras for a long weekend fishing the Kern River. The Questar stood the test easily with overnight temps in the mid-30’s. The cold was not an issue and the bag felt roomy and very comfortable. The baffling at the feet was a nice touch also. It even stayed warm after getting a little damp due to a storm rolling in one evening. Highly recommend.


Hello So I live in the Pacific Northwest and I plan on doing some high altitude late season backpacking trips, im curious about the water resistance of this bag and then how well it can keep the warmth when damp.