The title comes from Portuguese, where sono do diabo literally means the devil's sleep, a phrase used here as an exaggerated joke about being completely out cold. No clear original source is attached to this short upload, so it spreads mainly as a reaction clip on soundboards and in short video edits rather than as a quote from a known scene. It circulates alongside other sleep gags like *Snore* mimimimimimi in meme edits. Brazilian Portuguese meme phrasing gives it a specific flavour, while the simple sleep premise makes it understandable even without translation for most viewers online.