If you get lost in England and have a charged head lamp it's surely sensible to stay on the legs all night if it's cold.
But if you are really in the middle of nowhere I think it's better to sleep at night by the fire and walk during the day, because that is more energy efficient in the long run.
But if you are really in the middle of nowhere I think it's better to sleep at night by the fire and walk during the day, because that is more energy efficient in the long run.