I made a sleep timer for closing tabs. I couldn't find one so I made it. It bothers me that streaming services will keep playing after I fall asleep and wake me

I made a sleep timer for closing tabs. I couldn't find one so I made it. It bothers me that streaming services will keep playing after I fall asleep and wake me up with a blaring action or musical scene. So with this script I can set how tired I am and after I fall sleep, the program will close the current tab and blank the display to keep the light down. I don't consider it a program nor do I consider myself a programmer. But man, it was so satisfying to have completed it.