Too less sleep
We in Pakistan didn't sleep for a minute and watched 2nd round then quarter finals, semi finals on TV and for final we arranged big screen (projector) and had gathering of all my friends and colleagues etc. We didn't have our team in this tournament but we still enjoyed a lot. Some of my friends were supporting Argentina and some were praying for Germany. I think its worth not to sleep for a night if your country is winning such mega event.
From your words it looks like you didn't watch that live game. Did you?