I'm a morning person and I'm too energetic very well in the morning. My brain and mind is so sharp that I do things so easily without stress. I love my night for sleeping and with no disturbance.
You are the type of person who wouldn't want to take a phone call in the night as long as you are deep in sleep. There are people who are that way that doesn't want anything to bother their sleep. So, I get your point when you talk about nothing disturbing your sleep.