Yahoo Answers ( DO FLIES SLEEP?)

I FOUND THIS ON YAHOO ANSWERS WHILE I WAS INVESTIGATING WHEATHER OR NOT FLIES SLEEP. I CAME ACCROSS THIS AND IT GAVE ME A REASONABLE LAUGH. ANYWAY IM CURRIOUS TO KNOW HOW YOU WOULD ANSWER. SO LEAVE A REPLY IN THE COMMENTS IF YOU WANT.

*Do flies sleep ?
This fly has been trapped in my appt for 2 or 3 days. No point letting him out because it's so cold outside.

Anyways I thought he was dead because he was at eye-level on the wall and not moving. Now that I'm awake he's h***ing the ceiling light again. Was he sleeping until I turned that thing on? Also do flies have spiritual beliefs?

BELOW IS A LINK TO A REASONABLE ANSWER:
http://www.time.com/time/magazine/article/0,9171,40744,00.html