In an emergency situation you are likely to be with your family. You are going to want to keep them WARM, and help them get the best sleep possible. In a survival situation keeping a clear mind is critical, so sleep and warmth are essential. Not only is this sleeping bag big enough for the two of you, but it will also help you retain high amounts of your reflective shared radiant body heat! It is also lightweight and compact, helping you to better store and carry it. There is no need to have a cold night.