It's late in the month, but here is some ASMR, advice, and encouragement for anyone participating in NANOWRIMO, or anyone who just loves book and paper sounds. Please use headphones.
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