About to sleep. I know sleeping around this time is not good, especially when you have to wake up early. But there's a reason for my staying up late.
It's called polyphasic sleep. You can also call it multiple sleeps.
This is when you sleep little during the night and take little naps in the day.
I am trying to sleep for four hours at night and take 2 naps of 30 minutes each, one at 9:00 GMT and the other at 4:30 GMT.
You can try this experiment, it's good to challenge the body.