The greater levels of daylight during summer and other seasons would make two sleeping difficult, or even impossible.Perhaps two sleeping is merely a coping mechanism to get through the long, cold, boring nights of the winter. So long as we give our sleep the time and respect it needs, getting the “standard” eight hours of sleep should be fine. Thank you to everyone who visited, or took the time to leave a comment. A lot of commenters either practice, or used to practice this kind of sleep. Another possible reason for two sleeps is tending the fire during the night.With the rise of more street lighting, night stopped being the domain of criminals and sub-classes and became a time for work or socializing.
At first, the participants would sleep huge stretches of time, likely making up for sleep debt that’s common among modern people.
Rather than staying up and active the usual sixteen hours per day, they would stay up only ten.
The other fourteen hours they would be in a closed, dark room, where they would rest or sleep as much as possible.
This was alarming at first, but then I remembered that this sleep pattern was quite common in pre-electric light days.
When this happened I would end up reading or writing by candlelight for an hour or two, then going back to bed.” Moyer didn’t set out to reproduce our ancestors sleep pattern, it just happened as a byproduct of a lot of dark hours.