I tell you what my doctor prescribed Trazidone for me first before the Ambian and it said 1 to 2 tablets before bed time. I took 2 right out of the gate and I was having suicidal thoughts and the world was spinning the whole 9 yards. It scared my wife something fierce and me too, needless to say I flushed those things the next morning.
But most of the time the lack of sleep has to do with stress. Mine was my job and not ever being home because of it. But like I said once I retired early I slept like a baby when I came back from my old home office in Atlanta. I still will go through spells of no sleep but Melatonin does the trick for me.
Billy