The natural waking process helps to set "body clock" and makes people build a healthy sleep and wake habit slowly.

自然清醒的过程有助于设定“生物钟”，让人们建立一个健康的睡眠和慢慢醒来的习惯。

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These kinds of watches are used in sleep studies as a way of measuring how long people are sleeping, how efficient the sleep is, and whether they are waking up in the night.

这些类型的手表在睡眠研究中被用来测量人们的睡眠时长、睡眠效率，以及他们是否在夜间醒来。

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Establishing regular sleeping and waking times can help improve the quality of your sleep.

养成有规律的睡眠和清醒的时间，有助于提高睡眠质量。

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This is a condition that causes the sudden onset of sleep paralysis the loss of muscle tone that occurs when we sleep during waking hours, often as a result of strong emotions.

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Some of the interactions are well known already, such as how drinking too much water and interrupt sleep by waking you up to use the bathroom, or how consuming heavy and spicy foods can keep you up, but there may be less apparent effects as well.

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The story begins with Iichiro waking up, looking at the clock, guiltily asking himself whether he might sleep longer, and feeling both anxious and depressed by the realization that he has no reason to get up.

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