World Famous Sports Freemont Sleeping Bag has an insulation weight of 3 pounds. Wow, how is that for staying cozy and warm. The Freemont Sleeping Bag comes with a storage and transportation stuff bag. Features hollow core fiber as well as 4 hole and 7 hole fiber to provide greater loft and warmth. This sleeping bag measures a generous 33 x 75 inches and has a cover of polyester and a lining of brushed polyester flannel for warm and comfortable nights under the stars. This quality camping sleeping bag has a degree rating of 40 - 50 degrees.