Maker’s warranty: 2 year limited warranty against product failure caused by manufacturing, material and design defects; repaired when possible or replaced, case by case. Zpacks’s terms, read Oct 25, 2026
A sleeping bag from Zpacks with a full-length two-way side zip, an integrated draft tube and a zip guard. It opens flat to use as a blanket, or the foot end can be opened for venting.
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
Weight and price against the sleeping bags & quilts rated 20°F to 40°F in the RidgeNote register with a published figure; other figures against every one of the sleeping bags & quilts. Manufacturer-listed; sources and dates are on this page.
The lightest of the sleeping bags & quilts rated 20°F to 40°F on record is Zpacks Solo Quilt at 11.8 oz — 111 g less.
Main models on the same shelf, compared with the Zip Around Sleeping Bag on the makers’ published figures; the tick on each bar is the Zip Around Sleeping Bag.
Zpacks
Solo Quilt
3.9 oz lighter (111 g)
Zpacks
Classic Sleeping Bag
3.5 oz lighter (99 g)
Western Mountaineering
Nanolite Top Quilt
2.7 oz lighter (76 g)
Not ranked: 25 with no published weight.
See all 7 →
Hyperlite Mountain Gear
20-Degree Mummy Bag
rated 10°F warmer
10.8 oz heavier (306 g)
Therm-a-Rest
Parsec 20°F/-6°C Down Sleeping Bag
rated 12°F warmer
13.2 oz heavier (374 g)
Western Mountaineering
Ultralite
rated 10°F warmer
13.2 oz heavier (374 g)
Not ranked: 25 with no published temperature rating.
See all 37 →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.
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).
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.