在快速眼动睡眠周期之间，我们还有非快速眼动睡眠，包括深度睡眠和慢波期睡眠。

In between cycles of REM sleep, we have non-REM sleep, which includes deep or 'slow-wave' sleep.

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正常睡眠要有充分的III、IV睡眠期，也称慢波睡眠，如果打鼾憋气严重时，睡眠节律就会被打乱，慢波睡眠不足甚至没有慢波睡眠。

Normal sleep a full III, IV sleep, also called slow wave sleep, if Bieqi serious snoring, sleep rhythm will be disrupted, not even lack of slow wave sleep slow-wave sleep.

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