[kowen]

It's hardly a placebo effect if it has an effect for a few hours.

I've struggled with insomnia my whole life. If I'm able to fall asleep in the first place, I'm usually able to stay asleep long enough to get rested.

I only need the effect for about an hour, maybe 90 minutes. Long enough to fall asleep.

[angusgr]

I think the comment refers to the placebo affect for "I would feel like I wasn't fully awake for up to three days after taking it."

[kowen]

Ah, right! Rereading the thread, that seems the more likely interpretation.