Ayo! This time I'm whispering unintelligibly/inaudibly while reading Harry Potter! Hope you can relax or sleep through that! Leave a comment/feedback or a sub/like if you enjoyed it, that really helps me :) Good niiiiiiiiight! :)
To listen while using other apps, switch the player to Picture-in-Picture (PiP) during playback — it keeps playing in a small floating window (the screen stays on).
To listen with the screen fully off, in-browser playback stops by YouTube's design. Open the video in the YouTube app to keep listening where background playback is supported (e.g. with YouTube Premium).
Open in YouTube app