Read about what's been very intriging to me lately; **[Polyphasic Sleep](http://polyphasic.blogspot.com/)**. Can read about it [here too](http://www.xeeban.com/xeeban/archives/000003.html), or the wonderful [Wikipedia](http://en.wikipedia.org/wiki/Polyphasic_sleep): > _Polyphasic sleep (also known as Da Vinci sleep or Uberman sleep) is a sleep pattern intended to reduce sleep time to 2–5 hours daily. This is achieved by spreading out sleep into short naps of around 20–45 minutes throughout the day. > > The process of adapting to a polyphasic schedule involves a physically very difficult one- to two-week transition period. Thereafter, independent testers claim to experience no apparent drop of cognition or alertness, despite the few hours of sleep attained each day. On the other hand, it is believed that polyphasic sleep requires a rigid schedule, which makes it seemingly infeasible for many people. > > Relatively little scientific research has been performed on polyphasic sleep. Much, if not most, of the information about it comes from the claims of independent testers, many of who are bloggers._