Also here's a 5-1/2 month trial of polyphasic sleep - http://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ . This is the first entry, but he went back and added links to all of his posts about polyphasic. I am trying it, or attempting to - I am having trouble getting to sleep quickly enough, then having trouble getting up and not over-sleeping.