[WalterSear]

I've found that 0.3 mg will have me waking up very briefly in the night, but that my sleep is still refreshing. I assumed that this might have something to do with the 'dual sleep' that humans are ostensibly supposed to have had, before electricity came along.

I recommend experimenting with amounts (I break my pills up) and finding the amount that works for you.

[tashoecraft]

It seems the only real study/evidence for the dual sleep idea is from one source and a separate study of 8 people. Sleep experts seem to suggest that now is is impractical and unlikely you will be able to adapt, because of how prolific electric light is.