Sierra Designs Nitro 0 degree sleeping bag. Used two nights on Rainer. Regular size, left zip. Great bag looking for a new home at a great price. The item “Sierra Designs Nitro 0 degree sleeping bag” is in sale since Wednesday, March 20, 2019. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “901ranger” and is located in Ketchum, Idaho. This item can be shipped to United States.