Therm-a-Rest Altair HD

rated 4.5 of 5 stars (1)
photo: Therm-a-Rest Altair HD 3-season down sleeping bag


Regular Long
Price MSRP: $459.95
Historic Range: $234.83-$589.95
Temp Rating 0°F / -18°C
Fill 750+ goose down
Weight 1120 g / 2 lb 7 oz 1200 g / 2 lb 10 oz
Fits Up To 178 cm / 5 ft 10 in 193 cm / 6 ft. 4 in
Girth 158/147/102 cm / 52/58/40 in 163/152/102 cm / 64/60/40 in


The author of this review received a sample of the product from the brand or its representative in exchange for a review.

Therm-a-Rest has been known as makers of fine sleeping pads. They recently entered the sleeping BAG market. Had the chance to review the Altair zero degree bag.

This bag comes with stretch straps built in to the underside of the bag. These straps are designed to hold your Therm-a-Rest pad in place while you sleep. I was impressed with the bag and the simplicity of the strap design and function. See my video review for full details on this bag.


  • Lightweight
  • Warm
  • Holds pad in place


  • Zipper can snag easily


Source: tested or reviewed it for the manufacturer (I kept the product after testing.)

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