I have my google home/nest mini thing on my bedside table which I stream noise through when I don’t want to use my fan. That helps me. I often listen to rain storm sounds but there’s one track which usually gives me pretty vivid dreams https://open.spotify.com/track/0YTKlaMszVp6rja34CzUDs?si=d12d51059ab243e8

Might not want to try sleeping to that on repeat without spotify premium though, it might throw ads between plays.