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Listen to native speakers pronounce “sleep inertia” in real conversational contexts with synchronized timestamps and subtitles.
And if you wake up from deep sleep, you are properly out of it.You've got this thing called sleep inertia and it can take you a full hour to wake up again.So if you're going to nap, my advice would be-- as we'll see in a moment, do it in the circadian low after lunch and keep it to 15 to 20 minutes.