eli5 how is sleep not sleep? what is sleep quality?

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how does time sleeping sometimes not equate to restfulness? but sometimes a 20 minute nao does the job?

how does sleep quality vary?

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Anonymous 0 Comments

There are two types of sleep. In REM (rapid eye movement) sleep you’re dreaming but not recovering very well. In deep sleep phases the actual rest happens.

Especially when you’re disturbed your body might refuse to switch to deep sleep.

Though skipping REM isn’t an option either as that is when your memories get sorted out properly.

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