Coffee and cola affects you?

[hr1s7o]

I am willing to know for sure whether those two things - coffee and cola actually keep you wake. As far as I know it all depends on the person well at least most people say this. I personally fall asleep much harder if I drink some of those late evening but they do not seem to affect me much in the early morning. What about you?

[kowiamay]

I can't sleep well if I drink coffee after 5:30 pm or so, but I can drink a glass of soda any time and sleep just fine. Sometimes I get a little jittery in the morning if I have coffee with very little food, but that's about all the effect it has on me.