Can't sleep without alcohol. Is there a good substitute?

Mutual support helps. You might consider attending a meeting of alcoholics anonymous. Let them know about your difficulty sleeping and listen to how other recovering alcoholics have approached this challenge.
Alcohol sleep. You are addicted to alcohol. You drink until you are drunk and go to sleep. Every night, you have anxiety, restlessness, tension, insomnia and you treat your hangover with alcohol and go to sleep. The next trap is to get a prescrption for benzos and you replace alcohol with benzos, which pharmacologically, work in the same way, at the same site, as alcohol. Good substitue are: good sleep hygiene, .