Sleeping bags are one of the essential equipment for outdoor travelers. A good sleeping bag can provide a warm and comfortable sleeping environment for outdoor campers, allowing them to quickly recover their physical strength. The working principle of a sleeping bag is that it can form a non circulating air barrier between you and damp, cold air or the ground. Once the air barrier is warmed by your body temperature, it can work together with the insulation filling material of the sleeping bag itself to achieve good insulation effect.
The appropriate temperature scale is approximately the sleeping bag temperature scale+10, which means that the actual comfort temperature scale is the number after adding 10 to the nominal comfort temperature scale of the sleeping bag. For example, the sleeping bag temperature scale -5 degrees corresponds to the real environment temperature scale of 5-10 degrees; The sleeping bag temperature scale is 0 degrees, corresponding to a real environment of 10-20 degrees; The sleeping bag has a temperature scale of 5 degrees, corresponding to a real environment of 15-25 degrees. It should be noted that in cold outdoor camping, insulation is a systematic project, and not just a sleeping bag can solve the problem perfectly. We also need to use it in conjunction with mats, tents, egg nests, or inflatable or moisture-proof mats. Choose a double decker tent. If camping in snowy mountains in winter, you can also choose a four season tent with a snow skirt. If the environmental conditions are good, you can also choose a three season tent. Whether it's a three season account or a four season account, it's important to ventilate and exchange air when sleeping at night. Be sure to use a windproof rope to separate the outer and inner curtains, to prevent water droplets from breathing at night from being blocked by the outer tent and dripping onto the sleeping bag, wetting it.
