I used to drink a lot of beer every day and slept normally.
Then I quit drinking because it started to be incompatible with my aging body, but I still drink 2 or 3 strong Belgian beers on Saturday and Sunday: now I sleep normally on weekdays, and I fall into a dreamless slumber on weekends.
My conclusion is that, at least for a man my age, alcohol gives me more hours of lesser quality sleep. Make of that what you will.