The World Famous Sports 3lb Mummy Bag provides you with an all season option for camping or at home use. It boasts a double layer design that comes with 3 lb 4-hole hollow-core fiber insulation that will keep you warm and comfortable throughout the night. This World Famous Sports sleeping bag also comes with a convenient sculpted hood that provides you with an area to place a pillow up off the ground. Pull the drawstring cord on the hood to tighten the bag around your head and trap more heat if the night is exceptionally chilly.