During outdoor camping in any season, you have to make sure that will be able to enjoy your camping. This can be done by providing good insulation system which can make you sleep warmly and comfortably at night. One of items that can provide you warmth to be used for sleeping is sleeping bag. To choose the best sleeping bag, you have to know current temperature. You may go camping in any weather. Thus, summer camping will need different type of sleeping bag for winter camping. There is synthetic insulation or natural down sleeping bag that you can choose. For cold weather, natural down sleeping bag would be better than the synthetic insulation due to its capability in trapping a warm air and retaining heat.