Do not use your bed for anything except sleep; that is, do not read, watch television, eat, or worry in bed.

除了睡觉外，不要使你的床做其他用途。这就意味着，不要在床上读书、看电视、吃东西或是发愁。

youdao

Not unlike your morning ritual, a sleep ritual is a few things you always do before going to sleep.

与你早上的习惯性动作一样，睡眠习惯性动作是在你入睡前经常做的事情。

youdao

A: I believe the restless sleep and excessive sleep are directly related. When your sleep is restless, you do not enter REM sleep, which is when most of the benefit of sleep is received.

答：我认为失眠与嗜睡是有着联系的，当你失眠时，你无法进入深睡眠状态，那么你也就无法从睡眠中得到你白天需要的充沛精力。

youdao

But my only criterion is if you talk in your sleep, now that's not allowed because talking is not allowed.

我唯一的要求就是别说梦话,因为我的课上不准说话的

耶鲁公开课 - 基础物理课程节选

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WSJ: To Avoid Jet Lag This Summer, Travel Like a Scientist