What are some possible reasons that my hands fall asleep during the night and it's only after i consume alcohol?

Hand tingling EtOH: There are many reasons that your hands can "fall asleep" during the night and many are positional. You typically move without awareness when this happens, or wake up and avoid it getting worse. Alcohol could prevent you from that awareness; but it is also toxic to the nervous system, so could ultimately worsen something like entrapped nerve, carpal tunnel or other syndromes.