(Note that there are a few LWers attempting or contemplating polyphasic sleep right now. If you are considering it seriously we'd love your participation in a data collection effort on before and after cognitive performance.)

Polyphasic Sleep
How to have 19-22hrs of fun every day

https://dl.dropbox.com/u/107056/Minicamp2012/PolyphasicSleep/index.html
https://dl.dropbox.com/u/107056/Minicamp2012/PolyphasicSleep.zip

which includes at slides 114 and 115

Theory:
http://trypolyphasic.com/forum/post/8455/#p8455
http://trypolyphasic.com/forum/topic/876/uber-and-everyman-theory-analysis/
Experience:
http://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ ... and see links at bottom, particularly...
http://www.stevepavlina.com/blog/2005/11/polyphasic-sleep-log-days-25-30-final-update/
Note that Steve's experience of the flexibility of his near-uberman schedule doesn't match with other reports. I think this flexibility may be available after stabilisation, but come at a high cost before.
http://www.stevepavlina.com/blog/2006/01/polyphasic-sleep-update-day-90/
Steve's report of euphoric mood is fairly common on the Uberman schedule, and much less common on schedules that include regular core sleep.
http://www.stevepavlina.com/blog/2006/02/polyphasic-sleep-20/ Some experiments in flexibility
http://www.stevepavlina.com/blog/2006/04/polyphasic-sleep-the-return-to-monophasic/ Why did he stop?
http://trypolyphasic.com/forum/forum/17/adaptation/
And https://groups.google.com/d/topic/polyphasic/FTWKW0pvKZ0/discussion

and finally

My sleep tracks (which include masking sound including walla to drown out distracting conversation):

• http://dl.dropbox.com/u/107056/audio/Nap_20-22mins-heart.mp3 (my standard track)
• http://dl.dropbox.com/u/107056/audio/Nap_20-25mins.mp3
• http://dl.dropbox.com/u/107056/audio/Nap_20mins.mp3
• http://dl.dropbox.com/u/107056/audio/Nap_15mins.mp3

My schedule calculator: http://bit.ly/poly-schedule-tool