The threshold whereit potentially could be beneficial is north of 30 to forty milligrams. Once you get below about 20 milligrams, things may take a turn in the wake promoting opposite direction which is not going to necessarily favour sleep. I would highly recommend doing your diligence on who you, if you are going to do this, on who you provideris. None of the things that i say are prescriptive in any way or reflect medical advice.