How did ancient humans sleep?

You wake up at 2am. No reason. No alarm. No anxiety. You just — wake up. And you lie there thinking something is wrong with you. Nothing is wrong with you. For thousands of years before factories, before electric light, before the modern world — humans slept in two phases. They called it first sleep and second sleep. And the hour in between wasn't lost time. It was its own time. This is the story of how we slept before we forgot how. And why the most common sleep disorder today might not be a disorder at all. ━━━━━━━━━━━━━━━━━━━━━━━━ 🔔 New videos every week. Subscribe. ━━━━━━━━━━━━━━━━━━━━━━━━ #sleep #ancienthumans #insomnia