At night I program my body to wake up at a PRECISE but RANDOM time. No alarms, no regularity either. Unless I go sleep very late or tired, it works: I wake up EXACTLY at those times I set out at falling asleep. Ie last night I felt cocky so I thought 5:10. Sure enough Im up since 5:10. It doesnt matter the time, can be 7:23, 8:12, 6:48.. If I dont determine the wake up time, I just sleep till I'm done. Anyone who does the same? How on earth does this work? Search is giving me unsatisfactory answers. How does a body know when the clock hits that minute?

Water is lighter than air.