This will affect our depth of sleep, which reduced the sleep quality.
这些辗转反侧的过程会影响我们进入深度睡眠，降低睡眠质量。
The quantity and depth of sleep were assessed by the Pittsburgh sleep quality index (PSQI)at one month interval.
两组以美国匹兹堡睡眠指数（PSQI）为评估手段，来评估失眠症患者治疗前后一个月的睡眠质量。
The appraisal of sleep quality not only lies on the length of sleep time, moreover also on the speed of falling into sleep and the depth of sleep, as well as whether the sleep structure is reasonable.
评价睡眠质量不仅仅在于睡眠时间的长短，而且还包括入睡的快慢、睡眠的深度，以及睡眠结构是否合理。
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