What is keeping you awake?

This would have been great at 2 AM. But usually fears, things that happened a long time ago but they keep replaying in my mind.

Different things. Thinking about stupid things or problems, sometimes falling asleep for a nap in the afternoon and waking up in the evening and beeing wide awake through the night because of it. Sometimes its reading, playing games or watching something and just not want to stop.

Video games, leftover crappy sleep schedule from my last job (worked night shift), and a constant need to absorb possibly useless information from the internet.

The Sun, duh! The light of day keeps me awake at night along with my desire to praise it! https://i.imgflip.com/1kjuts.jpg