Valerian Root, St. John's Wort, Melatonin, Diphenhydramine, Doxylamine, and Kava Kava. Most of these are pretty mild alone but taken together knock you out. St. John's Wort is not a sleeping medicine, but it greatly enhances the effect of the Valerian Root to the point that it's almost as strong as Valium (I figured this out by looking up Valerian Root on Webmd and finding that they recommended not taking it with St. John's Wort because "it'll make you drowsy"; no duh idiots, that's what I'm looking for).
For the past few months that I've been doing this, it's been the only time in my life I've had any control over my sleeping schedule. I used to have trouble falling asleep before 8 AM, that's why I lost my job after all. Now I can actually watch the sunrise.