Is this really true? I believe that tryptophan-rich foods may help you get to sleep more easily and may even produce a better quality of sleep. Tryptophan is one of the precursors to seratonin. However, I question the claim that it will enable you to get by with less sleep. Do you have studies to back up this assertion? BTW, I've heard a similar claim about taking in DMAE (early in the day).
I am interested in hearing about polyphasic sleep patterns as well.
Well, as I have stated repeatedly in my previous posts, I encourage people who are interested by my posts to do their own research based on what I write, otherwise the tedious process of my doing the research for you will really make discourage me to pose scientific suggestions in future posts since the marginal benefit of my doing so (helping my fellow tennis players' breadth of knowledge increase), time-wise, is not going to cut it for me (in other words, I have limited time and I cannot always give you the sources...this is not a college, scholarly board, it is a tennis forum, and thus I don't see the need for me to include citations).
However, if you google "waking up earlier" with 5-htp, you will find quite a bit of results, some anecdotal evidence, some scientific claims, such as the following: "5-HTP increases REM sleep significantly (typically by about 25 percent) while simultaneously increasing deep sleep stages 3 and 4 without increasing total sleep time. 5- HTP accomplishes this by shortening the amount of time you spend in sleep stages 1 and 2, which in certain ways are the least important stages of the cycle. The higher the dose, the more time spent in REM." Source for quote:
http://www.holisticonline.com/Remedies/Sleep/sleep_ins_melatonin-and-5HTP.htm .
Furthermore, I have done my own personal research with various serotonin and dopamine levels affecting agents, and I have personally witnessed my sleep time requirements for feeling refreshed having decreased when using agents that increased serotonin in the body, including 5-htp, SSRI's, tryptophan-rich foods, amongst certain other substances. Interestingly, I have seen the opposite with dopamine-increasing agents.
And please click on the link I posted earlier (here it is again:
http://www.stevepavlina.com/blog/2005/10/polyphasic-sleep/ ) if you want to learn more about polyphasic sleep. Steve Pavlina's log is very well noted for being one of the most extensive logs on the uberman sleep cycle ever available to the public.