If you frequently go winter camping, then a 0° is an excellent sleeping bag that can get you through most cold weather conditions. It also comes with useful features like baffles, zipper guards and specialised shell fabric to keep you warm. However, for extreme climates in higher altitudes, a 0° sleeping bag may not be good enough. And if you’re not into cold weather camping at all, sleeping bags for warm conditions are more appropriate, not to mention easy to carry. Make sure that you always match your sleeping bag with your outdoor activity to avoid paying for features that you do not need.