Ever find yourself staring at the ceiling in the dead of night, the clock glowing 3 AM? You're not alone. This mysterious hour, when the world is quietest, often triggers an ancient alarm within us. What if this isn't just modern stress, but a whisper from our evolutionary past? Join us as we uncover the fascinating science and surprising history behind why your body might be setting its internal alarm for three in the morning. Prepare to rethink everything you thought you knew about sleep.