結果 : how much deep sleep is needed to feel refreshed
3:42

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0:22

if you wake up tired

Sleep Doctor
258,081 回視聴 - 2 年前

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1:01

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8:00:01

Deep Sleep Sounds: Ocean Rain 8hrs

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0:39

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4:29

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0:13

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0:35

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585,857 回視聴 - 2 年前
10:30

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14:15

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34:01

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606,958 回視聴 - 9 か月前
4:21

Why You Wake Up Exhausted (Even After 8 Hours)

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180,755 回視聴 - 3 年前
0:35

Sleep deprivation can lead to a 300-400% increase in being depressed and anxious

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