Biphasic and/or polyphasic sleep doesn't seem to work...even on monks who have been doing it for several years: http://mindhacks.com/2011/11/17/the-dreams-and-

Biphasic and/or polyphasic sleep doesn't seem to work...even on monks who have been doing it for several years: http://mindhacks.com/2011/11/17/the-dreams-and-hallucinations-of-cloistered-monks/ http://mindhacks.com/2011/11/17/the-dreams-and-hallucination...