> I have fallen asleep watching youtube many times.
Interesting new opportunity for YouTube here. Detect your usage patterns and near bed time show you increasingly boring content until you fall asleep, then fill your head with subliminal messages in these long ads.
I suspect that they are already doing that (or something like it) as I've seen certain content appear at specific times/days.
Why would they help you sleep and take a gamble on subliminal anything working when they can just do it when you're awake?
I fall asleep to YT sometimes watching speed runs when I have a hard time sleeping. When I wake up it is mostly running live streams of religious chants going in a loop. Hindu, muslim, orthodox christian. Or some strange genre of a Japanese anime girl making sounds.