Wow, I can't believe its already day 20!
Welcome, Shane, to the world of the polyphasic sleepers! My friend Shane just decided to join us. I've added his blog as a link of the left hand column. He's decided to live with that egg timer by setting it for 30 minutes and waking on that first 10 minute warning beep. See, we polys are creative!
Brief note on "reboot" days. Every now and then, I've hit a wall or just had an overwhelming need to sleep. I try to make it to Sunday in order to do this so as not to disrupt the other days that are usually filled with various activities. What are "reboot" days? It a day when you get a nice long period of sleep, in essence, rebooting your body to flush out the fatigue and refresh the mind. Harken back to the days when it was recommended to reboot Windows periodically to maintain a healthy computer.
"Reboot" days are not a weekly thing, but I've done it twice in the last 20 days. Basically I turn off all the alarms, egg timers, unplug the phone and just sleep till I wake up. I think its healthy, as it lets your body decide what it needs -- I am not pretending that this polyphasic sleep schedule is good for you, and doing a "reboot" day probably helps a lot in letting the body do what it needs to do while one sleeps.
The day after a "reboot" is pretty good. In fact, I can't nap at all since I've slept for so long. So I nap only when I am tired again (usually around midnight or 1am) and then go back to the core sleep at 4am and the naps. The next day I am very tired but that first nap at noon is a deep refreshing one. Then I feel fine and am back on the polyphasic schedule.
I put this out there as a tool for anyone trying to do this sleep schedule. I think the body will sabotage you and you will find yourself "rebooting" even if you don't plan on doing it. Don't treat that as a slip and get depressed, use it as a tool to keep yourself sane and healthy =)