I filmed this as part of my work at uni, it is not intended to relax you, it's a part of my work for uni based on film and sound. :) I think if I do any more films I will record it landscape instead of portrait as it'll make the screen more wider in view on YouTube and it may make the video more clearer being at a wider angle :) This is just an experiment.
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