1. Your natural sleep time
It is not safe to drive if you stay awake during your natural sleep time.
Our bodies are naturally programmed to sleep at night and be awake during the day.
We often get sleeping vibes while we want to work at night or in sleeping hour. So, it is not safe to drive if you stay awake during your natural sleep time. Even a single microsleep while driving can be dangerous and hazardous and could led to accident.