Automatically switching iPhone off at night

Is it possible to automatically have an iPhone X switch off at night?

I like to listen to a podcast as I drift off to sleep but ideally I'd then like the iPhone to completely turn off until I switch it on again in the morning.

is this possible?

I realise using the alarm and also on the podcast app itself, I can set them to stop playing after a certain time duration, but that isn't what i'm asking for here.