Foi dormir, quando acordou circulates online as a Portuguese-language meme sound, shared mainly for short videos about waking up to an unexpected change. Its appeal is the simple, relatable setup: sleep creates a clean break between two very different moments, so creators can reuse the same line for pranks, morning routines, failed plans and surprise reveals. Because the phrase is short and easy to recognise even for listeners who do not speak Portuguese fluently, it works well as a caption, a reaction and a transition in fast, visual edits.