打盹睡多久? How long should your naps be? - Sara C. Mednick

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午后的这段时光是人体在白天最倦怠疲乏的时候。从“打个盹”这个短语我们可以知道,小睡其实就是一个在白天很短的、有助于恢复精力的瞌睡。小睡可以持续5分钟到3小时不等,所以它可以包括一个完整的睡眠周期,包括三个阶段。

Your eyes get heavy and gradually. . . close. . .

But wait!

It's only lunchtime and you still have so much to do.

Would taking a nap help?

Or would it derail your day?

Our sleep, both at night and in naps, is made up of approximately 90 minute sleep cycles with four stages each.

A nap can last anywhere from five minutes to three hours, so it can include full sleep cycles or just a few stages.

As you fall asleep, you enter Stage 1: the first two to five minutes of sleep.

Stage 2 comes next, for about 30 minutes.

In Stage 2, body temperature drops, muscles relax, and breathing and heart rate become more regular.

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