Search results for Down Sleeping Bags are below:

http://www.nunatakusa.com/

Nunatak Gear is dedicated to the design and manufacturing of quality ultralight Sleeping Bags and lightweight Down jackets utilizing 900 or better goose Down and sophisticated shell fabrics. Nunatak was founded in the winter of 1999 and run by seasoned backcountry folks who've logged countless days in the wilderness. -Nunatak

Nunatak is designed and manufactured by backcountry specialists in the U.S.A. -Nunatak

http://www.westernmountaineering.com/

A dedicated search for the finest raw materials, meticulous design and unsurpassed workmanship have come together to provide you the highest quality Sleeping Bags available anywhere. With an offering of over 30 different models, Western Mountaineering can provide you a Sleeping bag for any event, outing, or expedition requiring the lightest and warmest Bags. -Western Mountaineering

We make all of our Sleeping Bags in our factory in San Jose and are here to give our customers the quality they want with Made in USA pride. -Western Mountaineering

http://www.zpacks.com/

Our goal is to go above and beyond to give our customers the best possible gear available. Many of our customers take our gear with them on what may be an adventure of a lifetime and we strive to help make those adventures amazing. We only make gear that we would use ourselves. -Zpacks

All of our gear is built in the United States right here in our workshop by our skilled seamsters and seamstresses. -Zpacks

http://www.enlightenedequipment.com/

We are a company dedicated to making some of the lightest and most functional camping gear in the world. Our focus on weight reduction, quality, and accessibility has made us one of the leaders in the ultralight market. While designed for ultralight camping and through-hiking, our gear is a great choice for anyone spending time outdoors. We are located in Winona, MN, where all our gear is designed and made by hand. -Enlightened Equipment

http://warmlite.com/

Each Tent or Sleeping Bag is Sewn by an Experienced Seamstress or Seamster in North America. -Stephenson's Warmlite

◊ Note-> Their tents and sleeping bags are manufactured in or close to the USA, but other items on their website may not be manufactured in/near the USA.

http://featheredfriends.com/

Over the last four decades Feathered Friends has become the standard in quality, long lasting, and high performing Down gear for expeditions and adventures. Each of our products unites our legacy of handmade construction techniques with the advancements of modern fabric technologies. The result is gear that excels in all conditions, from a cozy chair in your home to the summit of Mount Everest. -Feathered Friends

In 2015, we moved our production to a new facility in the SODO neighborhood of Seattle, Washington. With this newer, larger production facility, we are expanding our ability to make the best possible Down products right here in the great state of Washington -Feathered Friends

◊ Note-> Their website has additional products in 'Gear' and 'Footwear' that they do not manufacture -- these non-down based items from other companies may not be USA manufactured.

https://katabaticgear.com/

We keep almost all of our manufacturing in-house, and always ensure the highest quality. We want our customers to be customers for life: buying a new Sleeping bag every decade or so, after their old one has finally worn out -Katabatic Gear

◊ Note-> Not all of their products are manufactured in the USA, but some of their sleeping bags are manufactured in the USA.