It is striking what you say there, because of austerity I started drinking Hong tong/cola every other day, the other day I drink 2 glasses of wine.
The remarkable thing is that last night, as happens more often, I had trouble falling asleep, it took 1.5 hours before I slept also I perspired more than usual.
That can't be from the coffee, I only drink that in the morning, so it could well be because of the cola.
I always drink those two glasses before dinner, but because of your comment and last night's experience, I am considering quitting that mix, and stick to wine again.
Thanks for sharing your experiences.