I have a new Marmot Lithium 0 Degree sleeping bag for sale. $300 shipped (retail for $509). It has never been used and still has the tags attached. Includes the stuff sack and storage bag. It has been stored hanging, laying flat or in the storage bag. Here is info on the bag from the Marmot site
http://marmot.com/products/lithiumCertified 850+ Fill Power Goose Down
Long fits to 6'6"
2lbs 15 oz