If you could peer far enough into the night sky, you'd see a star in any direction you looked. When would you sleep?
Interesting question. Do you suppose there's someone at Google who's only job is to think of "Random" questions? Honestly, let's speak metaphorically. I have never looked for outward influences to see an inner light. It's something that burns brightly within. Sleep? There's plenty of time to sleep when I'm dead.