"Okay, that tells me not to go for anything sketchy. I'm betting they got an adverse reaction on one of the drugs with nastier side effects and ran back to hide in good old diazepam's skirts. Well, that doesn't rule out melatonin and tryptophan, or the nonbenzodiazepines zolpidem and zopiclone-- in fact, I'm pretty sure you'll like those. They have much cleaner side effect profiles than the benzodiazepines."