Clock App timer not working on Sonoma

I used to be able to use the Clock App Timer feature when going to sleep while listening to audios. Now it doesn't work. I use Sonoma 18.1. Does anyone know a work around?

The Lock Screen feature only gives instructions for sleeping on command if the Mac is inactive. As you probably know, we used to be able to go to the Battery section and select times, but that was removed for some reason.