My brain usually begins being productive after 8 pm. If by 10 pm I feel that progress is being made I can go all night. You blink and it's 4 am and there is... This comfy feeling, being there doing your thing in the middle of the night when it's all quiet and everyone is sleeping, you're listening old nostalgic songs and being like 8000% more productive while remaining 100% chill and contempt.