A good night's sleep on the trail often comes down to one decision: how much insulation you're carrying, and at what weight. After a year of testing 34 bags and quilms on desert thru-hikes, rainy overnighters and everything in between, Backpacker has crowned nine winners in its ultralight gear round-up, with two clear standouts.
The best ultralight bag is the Sea to Summit Spark Pro Down 30, a 900-plus fill power goose down mummy that weighs just 21.8 ounces in regular size and packs down to roughly the size of a cantaloupe. It earned praise for its ventilation flexibility — three zippers of varying lengths let you dump heat on warm nights while still burying yourself in a deep hood when temperatures drop. Vertical chest baffling paired with horizontal baffles below keeps the down from shifting, and testers confirmed it held its 30-degree rating while cowboy camping in northern Minnesota. The catch: it's expensive, and the multiple zippers take some fumbling to master.
On the quilt side, the Neve Gear Waratah -2C takes top honours and, at $280, is the bargain of the bunch. Its 14.3 ounces of 850-fill duck down match many 20-degree quilts, and one tester slept comfortably in 25-degree conditions with just a baselayer and wool beanie. Smart touches include pad straps set a few inches inside the edges — easier for tucking fabric underneath you to block drafts — and overfilled insulation in the footbox. A Fall 2026 update shaved an ounce off the weight (now 21.7 oz) and added smoother taffeta nylon, though the fabric still trails pricier rivals for water resistance.
Other category leaders include the Katabatic Flex 22 as best premium quilt — its water-resistant 900-fill goose down and two-way pad strap system kept a tester comfortable through a torrential thunderstorm on a 325-mile bikepacking race in Minnesota — plus the Big Agnes Fly Creek UL for comfort, thanks to a silky lining recycled from fishing nets, and the Cumulus Neo Quilt 150 as a superlight value pick. Rounding out the list: the Feathered Friends Tanager CFL for fastpacking, the NEMO Pulse Quilt for warmth-to-weight, the synthetic Enlightened Equipment Revelation Apex 30, and the Cumulus Aerial 250 as an emergency bag.
Why should holidaymakers care? If your next trip involves a hut-to-hut trek, a multi-day hike or camping anywhere nights get chilly, upgrading your sleep system is the single most effective way to cut pack weight — modern options now keep you warm below freezing while weighing under two pounds. Quilts suit side-sleepers and those who feel claustrophobic in mummies, while traditional bags still win for draft-free warmth. Budget-conscious buyers should note the Waratah's value story; anyone prioritising durability and wet-weather performance should look at Feathered Friends, Western Mountaineering or the Katabatic instead.
