Winter sleeping bags are rated for the colder temperatures that will encounter when camping in the more extreme temperatures and conditions found by those who spend time outdoors in the winter. Contrary to popular belief camping in the winter is not a test of fortitude that some consider it to be. With the proper clothes and gear such as
winter camping tents and heavier more insulated sleeping bags you can actually be quite comfortable and enjoy the outdoors even in very cold temperatures. The key to ensuring you have a good nights sleep in a winter sleeping bag, pack a bag that is rated at or below the temperatures you expect to encounter on your trip. If you tend to “sleep cold” you should also consider a colder rating than what you expect.
These winter sleeping bags will keep you much warmer and help you retain more body heat than regular summer temperature based sleeping bags. You should also combine your sleeping bag with a high quality well insulated
camping sleeping pad which will help shield your body from the ground temperature which will help you retain your body heat better than if laying directly on the ground.