Eli5: why do we sometimes wake up in a really bad mood after a mid-afternoon nap?

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This is something that happens to me from time to time since I was a kid.

I would take a nap after lunch, on a day like today. Then sometimes wake up feeling disoriented and depressed. Other times I’d feel fine.

What causes this specifically and why does it only happen sometimes?

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34 Answers

Anonymous 0 Comments

Sleep odd numbers your mood will be better
Sleep even numbers and you will feel grumpier

That’s why power naps is under one HR or three HR

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