Who Watched the Dark While Ancient Humans Slept?

You wake up at 3:07 AM. Annoying today. But thousands of years ago, being awake while everyone else slept could have mattered a lot more. So what happened at night before locked doors, electricity, and alarm systems? Did ancient humans actually take turns guarding the camp — or was something much stranger happening naturally? In this episode, we explore what modern sleep research can tell us about how human groups make it through the night, why someone may almost always be awake, and what happened around the fire after dark. And one study found something especially surprising: Across 20 nights, everyone was asleep at the same time for only about 18 minutes total. Not per night. Total. Welcome to Humanly Possible — where history gets a lot more interesting when you’re the one living through it. #AncientHumans #HumanEvolution #Sleep