Daytime shuteye, for one reason or another, simply is not as restful for humans.

从某种原因来说，白天并不是人类睡觉的最佳时间。

Sleeping in on Saturday after a few weeks of too little shuteye may feel refreshing, but it can give a false sense of security.

在一连几个星期睡眠不足的情况下，到了周六睡个懒觉可能会让你感到神清气爽，但这会给你一种错误的安全感。

Roughly one-quarter of the kids fell into the borderline-acceptable category, meaning they reported eight hours of shuteye nightly.

大约有四分之一的孩子属于那些可接受的接近边缘时间的那一类，亦即即他们每晚睡接近8小时。