The video's premise is that if the person in the video mentions your birthdate, name, favorite TV show or movie, height, or favorite color, then "you can go to sleep" (2:01). The goal is for you to stay awake until they guess a personal characteristic that matches you. 😄😊
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