Youtube on Autoplay. How can I make it play my subscription instead of random videos on Android?

So I go to sleep playing my favorite podcast. I try to make sure that I select podcasts that are several hours long because.....

the next video that plays will be outside of my subscription.

I go to sleep listening to philosophy for example and wake up hearing about mudslides or often weird topics that end up creeping into my dreams and ruining the calm philosophical podcasts that I'd much rather creep into my subconscious.

No, I don't want to listen to white noise either.

Any way to keep on to my subscribed channel for autoplay?

Thanks.