Ajungilak. Ajungilak by Mammut make a range of high quality sleeping bags. Ajungilak make lightweight spring and summer weight sleeping bags, ideal of backpacking trips and summer expeditions. They make camping sleeping bags, which are ideal for summer camping trips with the family. They make childrens sleeping bags, infants sleeping bags and convertible sleeping bags , which help protect your kids from the cold when you are exploring the great outdoors. They also make super warm 4 season and 5 season sleeping bags for mountaineering trips and Arctic expeditions. Ajungilak offer both synthetic sleeping bags, with insulation provided by man made hollow fibre materials, and down sleeping bags, with natural goose down offering great insulation with a small pack size.