Can one really ever totally shut their mind off?

You are tired and want to sleep, you want to forget the day’s trouble and just zone out, but you can’t, your mind just keeps firing thoughts. You figure if you can just banish this and that from your mind you can fall asleep. If you manage to wipe this and that from your mind some other thing takes its place. It is like the thoughts in your mind keeps firing like popcorn in a popper. I suspect even if you got drunk or stoned your mind would still be working you just won’t know it or remember. In a natural non-drunk or drug induced haze is there ever really away you can make your mind go blank with out a single thought?