Why Do You Sleep All Night But Still Feel Tired_ Relaxing Facts To Fall Asleep To

Sleep Science · Apr 21, 2026 · 2h 24m

You climbed into bed at ten. You woke up at six. Eight full hours. And you feel like you barely rested. The problem is not how much you slept. It is how much your brain worked while you were sleeping.During REM sleep, the stage where most vivid dreaming occurs, your brain is almost as active as when you are awake. The prefrontal cortex, responsible for decision-making and logic, is suppressed. The amygdala and limbic system, responsible for emotion and memory, are hyperactive. This mismatch means you can experience intense fear, joy, or grief without the ability to question whether the threat…