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White noise?
(self.zzz)
Universally, no. I do think it has to do with sleeping conditions through childhood though. My partner needs quiet to sleep, while I enjoy lectures or poscasts.
For a single activity we do a third of our lives, there isn't much discussion or culture about sleeping (or the act of dreaming). This is a community of people who want to discuss, make memes about, or just broadcast anything about sleeping; either personally or generally.
Rules