I sleep at 9pm and wake up at 4am, take a cup of warm water and I will do some simple exercises very slowly, then some house work. At 5am, I run for 30min with the speed 9km/hr (so it is a 4.5km run). I take a shower and I feel very good and energetic. 

After a breakfast with high protein, sometimes I will fell a little bit sleepy. But if I go out to have some fresh air, everything is great.

I take the lunch almost between 10:50-11:30am, then a 10min slow walk.

*I take a 20-30min (depending on if I am very tired) siesta at 12pm. When I wake up with some easy exercises, I still feel the body and brain are not so fully awake. And my heart rate is a little fast.*

I think I can wake my body if I run for a while, say 3km. But I don't want to run at 12h30pm or 1pm. Also, it is not convenient to run in the campus. Furthermore, I prefer to run at 5pm or 5:30pm.

*Do you have any idea how to be energetic after a 20-30 min siesta (afternoon nap)?*