Do you also find that after drinking a large cup of coffee, about 400 ml, early in the morning, you still can't sleep in the evening (it's just 11 p.m.)?

I'm feeling the same way right now. Okay, I didn't drink the coffee that early, around 9 a.m., but it still shouldn't have taken effect until 11 p.m. That wasn't what I was supposed to do. It was a strong coffee, four teaspoons in the cup. I guess I overdid it. It didn't taste that…