I'm super intrigued by all the stuff about polyphasic sleep. Basically for polyphasic sleep, instead of sleeping one big block of sleep at night, they sleep for 20-30 mins each (25mins has been tested to be the best) every 4 hrs (so they sleep 6 times a day) and actually stay awake for the rest of the time. This is called the Uberman sleep pattern. There's also another Everyman thingie.. whereby they sleep for a period of time (called the core sleep).. say about 3 hours, and nap for 20-30 mins after 5 hour blocks. so they take 3 naps. This gives them 21-22 hours (uberman) or 19-20hours per day of awake time and actually allows them to do more work.
So an everyman schedule will probably look like this:
Core Sleep: 4-7am
1st Nap: 12-12:20pm
2nd Nap: 5:20-5:40pm
3rd Nap: 10:40-11pm

(interestingly, i did do this before! i slept for 3 hrs, took a nap of 20 mins during lunchtime, slept for 20 mins on the train down to town ard 5+pm.. didn't do the last nap though. hahaa. and i must say, it really caused me to be quite awake).

and an uberman sleep schedule will look like this:
Nap times: 1am, 5am, 9am, 1pm, 5pm, 9pm

The most detailed uberman logs probably came from here where the guy logged in what happened to him everyday. hahaa. there are of course other articles online which doesn't support the polyphasic sleep pattern. like for eg, the long term effects are not known.. though the guy did try this way of sleeping for 5 and a half months. hahaa.

i found the following interesting:
EEG measurements indicate that humans are basically biphasic. There is a single powerful drive to sleep during a subjective night, and a single dip in alertness in the middle of the subjective day. EEG measurements are confirmed by many other physiological variables such as temperature measurements, cortisol levels in the blood, melatonin level in the saliva, levels of other hormones, blood pressure, gene transcription, immune cell activity, subjective alertness, motor activity, and countless other parameters.

which i guess, i naturally fall into as well. i usually sleep one block of sleep (ard 5 hrs, e.g. 2-7am) and take an afternoon nap of 20-30 mins during lunchtime. sleeping for 15mins create a strange effect whereby your dream moulds into the world around you.

i find this pretty interesting. i wanna try the polyphasic sleep patterns! :D during june hols. hahaa. ('cos saw that the first 10 days is for adjustment, and the first 3 days u'd basically be a zombie. LOL). so i can only do this during the june hols :( imagine being a zombie during work. i'd get slaughtered :)

i was pretty awake this morning. for the whole morning. not sure if it's 'cos i was excited about the polyphasic thing, or if it's 'cos of my odd sleep pattern this morning.
i fell asleep (just zonked out) ard 1am. i woke up at 4.30am 'cos i was having very bad cramps :\ and then i fell asleep ard 4.45am ('cos it was too painful to sleep at first) and woke up at 6.15am (just nice 1 sleep cycle). and i'm quite alert and awake now after my lunchtime nap.
oh well :)

will update again if i'm going to try the polyphasic thing :) in the meantime, will build up my self discipline :)