Some possible answers could be: someone from her family died, she is not getting enough sleep, she had a fight with her spouse that morning, her son is ill, she is not feeling well, etc.

其中可能有这样的答案：她家里可能有丧事，她没睡好，她今天早上和老公吵架了，她儿子病了，她自我感觉不好，等等。

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Someone who sleep talks might just make noises, or could have a long one-sided conversation with you.

讲梦话的人只是在制造噪音或对着你自言自语。

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Studies have shown that a sleep-deprived driver is as impaired as someone with enough alcohol in his blood to be considered a drunken driver.

研究已经显示，那些缺少睡眠的司机在路上的危险性，与血液里都是酒精，被称为醉酒的司机不相上下。

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"It's all the things that you do when you're young and trying to get someone to sleep with you, " said co-executive producer Judd Apatow.

CNN: 2013 TV: Past favorites, new shows make list of 10 to watch

CouchSurfing connects people who have a spare sofa with travellers who wish to sleep on it, on the tacit understanding that the travellers will do the same for someone else in the network some day.

ECONOMIST: Schumpeter