I didn't drinks coffee for breakfast unless it is necessary.
I didn't drink coffee at night but it doesn't make any different because I'll still stay awake.
I don't sleep at night and I'll drink coffee to avoid eating/taking too much food & dessert in the middle of the night or early in the morning.
I sleep at 3 or 4 am everyday and that doesn't make me an insomniac.
Smoke occasionally.
