Do you need anything under a sleeping bag?
Do you need anything under a sleeping bag? If you have a down sleeping bag or one with less insulation on the underside, a sleeping mat is essential. You can learn more about how sleeping bags keep you warm here. Sleeping mats, when selected correctly for the circumstance, will stop you losing body heat to the ground overnight through contact with it.
Do you wear clothes in a sleeping bag?
It is best to wear a fresh and dry base in your sleeping bag to keep it cleaner and to keep you warm in chilly nights. These clothes should fit well, better if these fit loosely, so as to not cut off circulation, and to help trap heat closer to your body.