Hmm..skip anything with coffee in it, or chocolate, avoid processed food for dinner, take a long walk at sunset, turn off your media devices by 10 PM,
But if push comes to shove, get dressed for bed, then take a tiny pinch of catnip powder. It will knock you out FAST, so be ready. Also set your alarm for extra loud because it's hard to wake up afterward.
People in eastern KY give fresh catnip to teething babies to calm them down.