Once you body gets used to the meds ,I think it changes it for ever in some form or another, so taking that amount of meds at a to young age would lead to some problem .I have never slept more than 4 hours a night for has long has I remember. My solution

I never took meds I stay up till 2 AM , my wife has the same sleep pattern and she is not mentally ill , weird really., she must have read thousands of books at night.