Three-Season Sleeping Bag
Sierra Designs Nitro 20-Degree
$320, 1 lb. 15 oz. (regular)
Sizes: men’s regular and long, women’s regular
sierradesigns.com
Choosing between sleeping bags can sometimes feel like getting the names of identical twins right—they look an awful lot alike. With bags, you can compare certain key specs: temperature rating, type and amount of insulation (or fill), total weight, and, of course, the price. Using those metrics, the new Sierra Designs Nitro bags look like a pretty good value, so I slept in the 20-degree Nitro 800 while camping on some cool and windy May nights at Idaho’s City of Rocks National Reserve, and on a three-night, 39-mile backpacking trip in Wyoming’s Wind River Range in mid-September, to see if its performance matches its impressive numbers.
