A sleeping bag is a lightweight, insulated covering designed to provide warmth and comfort for sleeping outdoors or in cool environments. Crafted in the shape of a cocoon or rectangular quilt, it is made from durable, weather-resistant fabric with soft inner lining and filled with high-performance insulation such as down or synthetic fibers. The sleeping bag retains body heat and offers protection against cold temperatures, wind, and moisture, making it an essential gear for camping, hiking, backpacking, travel, and emergency use..
