Since it's a non-linear metabolic process, and relies on a specific level of increase over time, when it increases too fast (because you took too much), won't n

Since it's a non-linear metabolic process, and relies on a specific level of increase over time, when it increases too fast (because you took too much), won't necessarily help you get to sleep. It will also give you a 'sleep hang over' in the morning. You also have to take it an hour or so >before< bed.