Uberman's sleep schedule

Uberman's sleep schedule is a form of polyphasic sleeping, in which sleepers take 20 minute naps every 4 hours throughout the day. It is widely considered the most extreme form of polyphasic sleeping. Those who adhere to this schedule report that it is difficult to adjust to, but many of those who do adjust suggest that it is effective. Although there are many online accounts of people having successfully converted to it, there is very little scientific research on any form of polyphasic sleeping.

History
The term was first used on the Internet on 29 December, 2000, in an Everything2 article, where the author, going by the name "PureDoxyK", documented six months of successful polyphasic sleep. It was picked up in a Kuro5hin article on 15 April 2002.

PureDoxyK reattempted the schedule with a full-time job and other responsibilities, to prove it could be done. After ten days, she dropped the uberman schedule and moved to another schedule called Everyman. She is blogging the experience at http://www.puredoxyk.com/

Another blogger, Steve Pavlina, claimed to have adapted fully to polyphasic sleeping and to have continued to sleep on the Uberman schedule for 5 and a half months with suffering any drawbacks on the long run.

As for an unsuccesful trial, Neil Strauss documented an attempt at this sleeping schedule in his book, "The Game." Over the course of several days, Mr Strauss and his roommates attempted to replicate the Uberman sleep schedule, but found the task too arduous and abandoned it completely. The goal was to find more time in the day for other "pursuits" by sleeping less, though it became clear that the schedule was not leaving its adherents in a well rested state for their wakeful hours.

The only known mention of Uberman as such in print can be found in sleep researcher Sara Mednick's book, ''Take a Nap! Change Your Life'' (ISBN 0761142908).

Following this method, you would get roughly only 2 hours of sleep per day.