ok, i should probably not worry everyone so: the disorder in question is insomnia, and has been since I was young. i have only had benefit really from one drug ever, which is trazodone.
but after a sleep study that found basically subclinical central apnea, the sleep neurologist thought it could be caused by the trazodone, and that it might be useful to look for something else. he tried a tricyclic, half dose. I am not good with tricyclics. Still, it turns out.