I was on the Uberman sleep schedule for around twenty-one days, earlier this year. I know, some people say three weeks isn't enough to properly transition, espescially accounting for all my slip-ups, but during those twenty-one days, I managed to produce a bit of creative work, do schoolwork, and not injure myself or others at all. I was forced to go back to monophasic by my school schedule. If my schedule relents next semester, I'll transition over Christmas break and be back on it.
Currently, I get around seven hours of sleep each schoolnight, though I'm certainly capable of sleeping for longer. I'm always torn between the efficiency of cutting down on sleep and the chance having more time to pratice my lucid-dreaming skills.