Sleep isn't downtime — it's a ruthlessly scheduled maintenance window, and missing it doesn't just make you tired, it quietly breaks things. In this episode, we get into the specific biological jobs that only run at night: memory consolidation, metabolic waste clearance in the brain, hormone resets, and cellular repair cascades that no supplement can replicate. We'll look at what the science actually says about sleep debt, whether you can really 'catch up' on weekends, and the one sleep metric that matters far more than the eight-hour rule you grew up with.