Metal that you can listen to while falling asleep, one that feels like it could put you into a dream like state. Open to all genres but I guess black metal and drone are probably best suited for this. Velvet Cacoon's "Genevieve" is a perfect example of what I'm looking for. Here's a song from the album if you're unfamiliar.

my go to albums for napping have for a long time been these three:
ea - ea
gris - à l'âme enflammée, l'äme constellée...
alcest - écailles de lune

and i recently heard the new old saw album (sewn the name), and thought it might be a new addition

I've slept to Rain Upon the Impure and Hoagascht before. Try those

Oxendaray - Sensualism of eternal Guilty

I feel like blissful-sounding bands like Astronoid or Lantlos might work too

Lustre is my go-to!

Enslaved - 793 Slaget om Lindisfarne
(At least first 2 minutes, gets pretty heavy with blast-beats after a while, if that's not your thing)

Try this one

October Tide - Rain Without End
Shape of Despair - Shades of...
Dolorian - Dolorian

I have an upcoming review, Lengsel- Solace. It has a hypnotic dreamy trance vibe