Your legs may also move without your control while you sleep.

你的腿可能在你睡着的时候不受你控制的抖动。

youdao

'if your phone is on the nightstand, then it will be more difficult to have a good night's sleep without feeling compelled to reply to a message or check your Facebook account.

如果你把手机放在床头，你就很难有很好的睡眠，因为你会觉得自己有回短信和看看微博的强迫症。

youdao

Once the habit is established, then you can vary your wake-up times or occasionally go without the alarm if you want to sleep in, but until then it's best to keep the pattern very tight.

一旦你养成了这个习惯，你可以改变起床的时间或是在没有设定闹钟的情况下去睡觉，不过在那之前你要严格保持这种模式。

youdao

Without sleep, you will literally lose your mind.

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This allows the iPod to go to sleep and shut down when you shut your car engine, without you having to think about turning anything off.

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When you need to take a break, close the lid and VAIO goes into an energy-efficient deep sleep, keeping your data stored safely for up to 90 days1 without running out of power.

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