Sierra Designs Sleeping Bag from Amazon.com

With a lightweight design, a temperature rating of 15 degrees Fahrenheit and an array of features, it's easy to see why the Nitro 15 Degree Long down sleeping bag has been a perennial best-seller i... more

With a lightweight design, a temperature rating of 15 degrees Fahrenheit and an array of features, it's easy to see why the Nitro 15 Degree Long down sleeping bag has been a perennial best-seller in the Ultralight Series by Sierra Designs. less

The Solar Flare from Sierra Designs is probably suited to the greatest variety of climates and pursuits for women. Rated to 15 degrees, but with a two way Snag Free zipper to allow comfortable ven... more

The Solar Flare from Sierra Designs is probably suited to the greatest variety of climates and pursuits for women. Rated to 15 degrees, but with a two way Snag Free zipper to allow comfortable venting, the Solar Flare redefines a girl's best friend. less

The Solar Flare from Sierra Designs is probably suited to the greatest variety of climates and pursuits for women. Rated to 15 degrees, but with a two way Snag Free zipper to allow comfortable ven... more

The Solar Flare from Sierra Designs is probably suited to the greatest variety of climates and pursuits for women. Rated to 15 degrees, but with a two way Snag Free zipper to allow comfortable venting, the Solar Flare redefines a girl's best friend. less

Sierra Designs wrapped the Men's Trade Wind 30-Degree Down Sleeping Bag with a waterproof breathable DriZone shell to keep the insulation dry even during an open bivy. The 600-fill down insulation'... more

Sierra Designs wrapped the Men's Trade Wind 30-Degree Down Sleeping Bag with a waterproof breathable DriZone shell to keep the insulation dry even during an open bivy. The 600-fill down insulation's excellent warmth-to-weigh­t ratio shaves ounces from your pack, and it also helps the Trade Wind Sleeping Bag pack incredibly small to save precious cargo space. Whether you're going on a long-distance hike or want a bag that can handle a night in a snow cave, give this Sierra Designs bag a try. Yo... less

With a lightweight design, a temperature rating of 15 degrees Fahrenheit and an array of features, it's easy to see why the Nitro 15 Degree Long down sleeping bag has been a perennial best-seller i... more

With a lightweight design, a temperature rating of 15 degrees Fahrenheit and an array of features, it's easy to see why the Nitro 15 Degree Long down sleeping bag has been a perennial best-seller in the Ultralight Series by Sierra Designs. less

Boys will appreciate our cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuf... more

Boys will appreciate our cold-weather workhorse, the Big Dog. Rated to 20 degrees and filled with HeatSync insulation, the Big Dog packs warmth and comfort into a cool-looking bag. An attached stuff sack won't get lost, and a Sleep E-Z Pillow (included) stows in its own pillow pocket. The ergonomic hood and draft tube retain heat and a tricot-lined foot box provides additional insulation for feet. less

Sierra Designs couldn't have given the Men's Wicked Light 45 Degree Down Sleeping Bag a more appropriate name--it barely tips the scales with a 22oz weight. This isn't some feature-strippe­d bag. Si... more

Sierra Designs couldn't have given the Men's Wicked Light 45 Degree Down Sleeping Bag a more appropriate name--it barely tips the scales with a 22oz weight. This isn't some feature-strippe­d bag. Sierra Designs added a full-length zipper for ease of use and draw cord around the collar to keep out the cold air. The Wicked Light Sleeping Bag's lofty 800-fill down insulation provides incredible warmth for its weight, so you don't have to choose between a warm night and a light pack. less

Updated for 2008! An excellent combination of performance and affordability, the Sierra Designs Wild Bill 20 Degree synthetic sleeping bag is a perennial best-seller. Durable and warm, the Wild Bil... more

Updated for 2008! An excellent combination of performance and affordability, the Sierra Designs Wild Bill 20 Degree synthetic sleeping bag is a perennial best-seller. Durable and warm, the Wild Bill 20 Degree is truly a bargain. less

Sierra Designs was founded by George Marks and Bob Swanson in 1965 in Richmond, CA. They wanted to design outdoor equipment that would enhance your experience in the rugged outdoors. Sierra Designs... more

Sierra Designs was founded by George Marks and Bob Swanson in 1965 in Richmond, CA. They wanted to design outdoor equipment that would enhance your experience in the rugged outdoors. Sierra Designs products have been tested as they've traveled to the highest peaks, held up in 230 mph winds, and withstood unbearable downpours. Sierra Designs moved to Emeryville, California, in 1994. Today, they have several partners worldwide and in the USA you can find them in Louisville, CO with warranty and... less

You won't believe how much warmth you get from such a small package - the Nitro packs into a tiny sack (included), but stays toasty to 15 degrees. Continuous baffling and a draft tube contain 800-f... more

You won't believe how much warmth you get from such a small package - the Nitro packs into a tiny sack (included), but stays toasty to 15 degrees. Continuous baffling and a draft tube contain 800-fill goose down, the warmest, lightest insulation available. Cinch down the Jacket Hood and see how intelligent design, in conjunction with the best materials, makes a superior piece of gear. Removable Pad Locks keep you atop your sleeping pad, while Foot Box Venting dials the internal environment of... less