When Do They Sleep?

Are you a Twitter user? Then with 'When Do They Sleep?' you can find the sleeping schedule of your Twitter friends. Specify the Twitter username of the person whose sleeping pattern you want to know and hit Enter. An algorithm will determine the approximate sleeping schedule based on the time when he or she stays least active on Twitter.

Of course, not being active on Twitter doesn't mean you're sleeping. That's why this little app is just for fun and certainly not accurate. It says I'm more likely to sleep between 8pm and 4am which is not correct. I actually sleep between 1am and 9 am.

Some other results: Barack Obama is more likely to sleep between 1am and 8am. Oprah Winfrey is more likely to sleep between 11pm and 6am, and Paris Hilton is more likely to sleep between 3am and 9am.