I had four glasses of wine on New Year's Eve. I woke up at 3:00 am and couldn't get back to sleep.
I'm pretty sure my mistake was reading up on alcohol causing insomnia. Two days later I had a single glass of wine right before bed and the same thing happened.
So other than five one ounce tastes at a wine tasting last Sunday afternoon I'm teetotaling. I'd rather sleep than drink.