Sharpie pen. A word search, a doodle, and some scissor cutting, with effects. You will need to listen with headphones or this won't work. An experiment with sound, let me know if you like this type of video. Panning hard left and hard right respectively, with the middle video in stereo with a bit of reverb. Thanks to DodgeMagnum13 for the request of a Sharpie pen, I hope this sends you to sleep!
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