Wenzel® Grande 0°F Sleeping Bag. At 81" long and 38" wide, you could definitely call this "The Big Sleep"!
Its size allows for a little tossing and turning... although its comfort works to prevent that. The shell is 8-oz. cotton. Lining is soft, cozy flannel.
The effective, durable insulating fill is 6 1/ 2 pounds of non-allergenic Insul-ThermTM polyester fill. Quilt-through construction prevents fill-shifting, and cold spots. Has an oversized #7 self-repairing zipper. 2 compression strings keep it rolled up tight.