I don't know of any credible claims that managed it for more than a couple of months, and even that was on a semi-anonymous internet mailing list :) My persona

I don't know of any credible claims that managed it for more than a couple of months, and even that was on a semi-anonymous internet mailing list :) My personal record was 3 weeks, not including the adjustment time, but I would always get derailed by a cold. I'm really need my sleep though, I'm sure that someone with less need for sleep could do better. I found that by perfecting the napping-on-command first (for several months, too) rather than the going without sleep, I was able to make the transitions relatively painless, until I would get sick.