[Vincent]

If you're going to attempt the Uberman, then you need to schedule it so the next 10 to 14 days are not going to be important in getting things done. If you have a SO, friends, roommates, co-workers, anyone to help you stay on schedule, then use them. If you're like most people, it will be extremely difficult to get by the adjustment period. Do not ever oversleep. Keep a strict schedule during the adjustment period. Do not drink caffeine &/or alcohol. Do not use any drugs. Becareful about sex, heavy exercise, and heavy meals, which may knock you out for a prolong period of time. Eat light & healthy. Also it helps to do activities like go for a walk, and stand up & work if possible during those times you are really tired. The 2hr/day is the strictest, but most energizing schedule. It's been done by quite a few people for 4+ months. If you make it past the adjustment period, you will experience lucid dreams, and you will notice that you are much more mentally sharp then if you were accustomed to monophasic or biphasic sleep.

I personally think it's possible to do, with no really harmful effects if done for less than a year. However, there may be negative side effects (like death, haha jk, but not really), but these aren't well known. I'd highly recommend seeing a doctor during this time. Better advice would be to cut things out like poker that are basically a waste of time.

It's highly unlikely that our ancestors slept in a monophasic pattern, which is how most of civilization sleeps today. Also, the idea the your in REM sleep during those 20minute naps is just an idea. It's quite possible that you're body is getting different parts of each sleep phase.