I drink coffee 3 cups a week, not more than one cup per day. But sometimes I drink tea in the afternoon. I usually drink coffee before noon. Overall, I sleep well and function well during my work.

I usually don't drink coffee in the afternoon, which affects my sleeping.

Also, if I have a long drive over 2 hours, I usually drink a Red Bull as it keeps me alert even more!

I love coffee with moderation!