I'm thinking of trying datura inoxia as a sleep aid... I noticed these 2 blurbs on a scopolamine page:

Even if the sleep aid dosage isn't nearly the dosage recommended on this page, I suppose if it works well, it might not be wise to use as a long-term sleep solution, or to take d. inoxia more than 2-3 times a week? So far I've tried 5 seeds and didn't notice anything, but I'm gradually going up.