Why You Stay Up Late: The Truth About Revenge Bedtime Procrastination.
Revenge bedtime procrastination is when people delay sleep to enjoy activities they missed during the day, sacrificing rest for leisure. The term originated in China, describing how overworked individuals reclaim their time at night. It gained popularity after journalist Daphne K. Lee’s viral tweet explaining it as a way for people with little daytime control to feel free during late-night hours.

References:
https://www.verywellmind.com/what-is-revenge-bedtime-procrastination-5189591