[sireat]

All the anecdotal indications is that polyphasic sleep is simply acquiring significant deep sleep debt.

That is: polyphasic sleep is not sustainable over a multi year period.

Humans can still do it while sailing in an ocean, on space ships and similar extreme locations.

However a significant relapse then follows in more "normal" places.

I'd love to see if someone was able to be productive for 3+ years on polyphasic sleep.

Personally I relapsed after a few months - maybe I never truly transitioned.

[user_7832]

> I'd love to see if someone was able to be productive for 3+ years on polyphasic sleep.

Buckminister Fuller apparently was close. > Fuller reportedly kept this Dymaxion sleep habit for two years, before quitting the routine because it conflicted with his business associates' sleep habits. (From his wikipedia page)

[meindnoch]

Yikes. For me, this is an argument against polyphasic sleep. That guy was a total quack.