I know exactly what you mean - I've got to get up in the morning to see the kids off to school, do packed lunches etc but I still got some wine left and I am just not tired!
I tend to fall to sleep on couch then oH says I'm going up (about 10pm) lol. I say I'm just going to have a drink. Make it and then go on here for 2 to 3 hours lol and I have to get up 7 days aweek at about 6a.m. But I'm just not tired. It seems to wake me up. Mental note do not go on HHO near bedtime go to bed!!