Well, it sounds like you sleeping is already not so good, so how much worse could it be with wine? It might improve. Also, a glass of wine daily (or probably any drink with about the same alcohol) is pretty good for your health. I wouldn't worry too much about the alcohol dependency issue either. It is true that some people who just drink one glass or two a day are actually alcoholics. They don't find out until they are hospitalized overnight or go away somewhere and all of a sudden start having bad withdrawl symptoms (but hospitals can and will give them alcohol if they need to). But the odds are against this.