What if we didn't need sleep?If you've ever pulled an all-nighter, you know you're not yourself the next day.<img src="http://feeds.feedburner.com/~r/foxnews/health/~4/uh9cLhyzyC0" height="1" width="1"/>
Source: What if we didn't need sleep? (http://feeds.foxnews.com/~r/foxnews/health/~3/uh9cLhyzyC0/)