Lowest panel should be the wake up alarm. My mornings have been so much better since using a talk radio station as a morning alarm. This is so much gentler than waking up to a blaring alarm noise. It's quite pleasant having soft vocal sounds for waking up, and then lying in bed for 5 min listening to the radio rather than bashing snooze and sleeping again to wake up groggy to a blaring bell in 5min. Highly recommended.

Do not use a song as the morning alarm. You'll end up hating the song.

Honestly, I'd say this depends more on the narration than the content. A good narrator can make any topic interesting, a great narrator can do that and make it soothing enough to fall asleep to.

"Welcome to my 8 hour video essay on the origins of the Salamander space marine faction. "

Based on reality:

These women use true crime podcasts to lull themselves to sleep—experts explain why it works

My favourite song before sleep are WM-D6C from Otherworld Legends & Volt Age - Volt's Theme

Ladies and gentlemen, my wife, every night. She's onto some TV show that seems to be nothing but white trash committing white trash crimes. Half the show seems to be that same trash confessing to the cops. They just happily run their mouths for hours on end.

I listen creepypastas

Anything read by LeVar Burton.

People need noise to sleep? To me that seems counterproductive to sleep.