I'm on viibryd 40mg and previously taken 150mg Amitriptilline (Elavil), then DC because it stopped working, went to Ambien, it worked 3 days shy of a month exactly. I have had 11 hours sleep in 72 hours and have been reading clinical trials all day; I don't want to give up Viibryd. Has anyone found a successful sleep medication with Viibryd? Thanks.