I have never understood why people need to sleep. Whenever I tell most people that, they usually reply, "Well, why do we need to do anything? Like eat?" But eating is more obviously a necessity, as a consequence of the First Law of Thermodynamics. If we expend energy (which we do simply by breathing and having our hearts beat), we need to take in energy. But I'm not aware of any good reason why we need to sleep. Even if it's proven that it's necessary, I don't know if anyone really understands why.
I LOOOOOOVE Flying Omelette!!
Crawl and 1000