Therm-a-Rest Questar Sleeping Bag: 20 Degree Down

We’ve read the reviews across the web for the Therm-a-Rest Questar Sleeping Bag: 20 Degree Down and summarize the results below:

Universal Ranking

PeakScore: 95 (out of 100)
User Rating: 4.8 stars 
Expert Rating: 4.6 stars

Number of Ratings Reviewed: 35

Pros & Cons

Reasons to buy:

User Reviews

  • Comfortable for all-night use.
  • Very versatile for a mid-range sleeping bag.
  • Lightweight for ease of transportation and carrying.
  • Comes with a storage sack to easily hold your sleeping bag when not in use.
  • The foot warmer pocket keeps your feet warm during cold nights.
  • Very compressible to fit into your backpacking bag for long trips.
  • Roomy for moving around in during sleeping.

Expert Reviews

  • Inexpensive compared to other similar sleeping bags.
  • Very comfortable for all-night use.
  • Weighs under three pounds for easy transportation.
  • Uses taffetta weave for a very comfortable material against your skin.
  • The large zipper is easy to use with gloves on and slides easily.
  • The goose down is water resistant and dries very quickly.
  • The cinch cords and seams prevent any gusts of wind from entering, helping keep out the cold air.
  • Features an insulated hood to keep your head warm in cold temperatures.
  • The draft collar helps to seal in the heat and prevents any cold air from entering.
  • The hydrophobic down resists dampness and moisture to keep you warm in humid conditions.
  • Comes with straps that attach to the sleeping pad to prevent you from rolling off in the middle of the night.

Reasons NOT to buy:

User Reviews

  • Might not provide enough warmth for freezing temperatures.
  • The material feels somewhat fragile and lacks durability compared to similar options.

Expert Reviews

  • Stomach sleeping while using a mummy bag will be less comfortable than other options.
  • The material can show dirt pretty easily, meaning you have to clean this sleeping bag more often than other options.
  • Does not provide enough warmth to be used as a four-season bag.
  • Might be a bit short length-ways for some body types.
  • The pack size is not the smallest when compared to other similar choices.


The Therm-a-Rest Questar Sleeping Bag: 20 Degree Down is a comfortable, lightweight, and easy-to-use option that can provide ample warmth for 3-season use. Despite not being warm enough for very cold temperatures, if you are looking for a bag that has comfortable material, an insulated hood, and a toasty foot pocket, this could be a good option.


Note: User and expert rankings were reviewed across the web. Some expert reviews include these: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.