The Mind After Midnight: Where Do You Go When You Go to Sleep?

The Mind After Midnight: Where Do You Go When You Go to Sleep?

We spend a third of our lives asleep. Every organism on Earth—from rats to dolphins to fruit flies to microorganisms—relies on sleep for its survival, yet science is still wrestling with a fundamental question: Why does sleep exist? During Shakespeare and Cervantes’ time, sleep was likened to death, with body and mind falling into a…