"Sleeping twice.

In medieval times life effectively revolved around the sun. But particularly in the winter, there was far too much time in the night to fill with just sleeping. It was still common for people to go to sleep at dusk, after a hard day’s work. But they would wake up in the middle of the night and do something (chat to the neighbors, have sex in front of the whole family, have a snack, etc. Then you’d go back to bed for your second sleep, waking up with the sun."

kirotheavenger