Maker’s warranty: Limited lifetime warranty; electronic devices 2 years; covers original purchasers from authorized dealers; repair first; repair kits sold. Therm-a-Rest’s terms, read Oct 25, 2026
An 800-fill down sleeping bag from Therm-a-Rest rated -20°F / -30°C, made for extreme cold on remote expeditions. Therm-a-Rest designs it to pack small for its warmth.
Figures with a source link to the page they were read from, with the date we checked it.How we get these figures →Wrong figure? Tell us
Against every one of the sleeping bags & quilts in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
Main models on the same shelf, compared with the Polar Ranger -20°F/-30°C Down Sleeping Bag on the makers’ published figures.
Not ranked: 25 with no published temperature rating.
Open in search →Sleeping bags rated 15 to 25°F ranked by maker-published weight: 22 models. Lightest: Therm-a-Rest Vesper 20°F/-6°C Down Quilt at 1.21 lb (550 g).
Sleeping bags and quilts rated 26 to 35°F ranked by maker-published weight: 16 models. Lightest: Zpacks Solo Quilt at 11.8 oz (335 g). Median 1.39 lb.
How to read a temperature rating, why fill weight matters more than fill power, per-size prices, and what the makers publish for the Kelty Cosmic 20, the Western Mountaineering line, NEMO, Sea to Summit, Mountain Hardwear and Therm-a-Rest.
