Wenzel Camp & Hike Sunward 30 Degree Sleeping Bag Navy/Gray 78 in X 33 in 7409519. Keeps you warm down to 30 degrees. This Wenzel Sleeping Bag is a soft polyester outer and liner with quilt through construction. The combination of the soft polyester and 4 lbs of Insul-Therm fill will keep you warm down to 30 degrees. The Wenzel 30 Degree Sunward Sleeping Bag includes a velcro tab that secures the large 2-way main zipper that offers versatile venting and a cover that will convert to a blanket.