You program the clock with the latest time at which you want to be wakened, and it then duly wakes you during the last light sleep phase before that.
你给时钟设定了你想要醒来的最晚时间，然后它会在之前的浅睡眠阶段按时叫醒你。
For example, women are more likely to experience disturbed sleep, anxiety and unusual fatigue before a heart attack.
例如，女性在心脏病发作前更有可能经历睡眠紊乱、焦虑和异常疲劳。
"I wish I could go to sleep before you leave me," he said rather shyly.
“我希望在你离开我之前我能睡着。”他相当害羞地说。
To prepare for this before winter, these animals eat extra food to become fat which gives them the energy they need while they sleep.
为了在入冬前做好准备，这些动物会吃更多的食物来增肥，从而获取睡眠时所需的热量。
Before you rush to the pharmacy to buy sleep medications, try natural sleep therapies.
在你冲到药店去买睡眠药物前，试试看自然睡眠疗法。
Back home, we undress at bedtime; here, we put on more clothes—including woolly hats and gloves—before going to sleep.
在家的时候，我们上床时要脱掉衣服；在这儿，睡觉前要穿得更多——包括戴上毛线帽子和手套。
Before I left him, I sang him to sleep.
在我离开他之前，我唱歌哄他入睡。
I have miles to go before I sleep.
临睡前仍有漫漫征途。
A small place near a tree or a rock will be the warmest, but be careful before you decide where to sleep.
靠近树或岩石的小地方会是最温暖的，但是在你决定哪里睡觉之前要小心。
It was hours before he got to sleep.
过了好几个小时他才睡着。
First, review all the information in your mind right before you go to sleep.
首先，在你睡觉之前在你的脑海中复习所有的信息。
A warm drink of milk before bed has been the best choice for those wanting a good sleep.
对于想要睡个好觉的人来说，睡前喝杯热牛奶是最佳选择。
With the right amount of sleep you should wake up fresh and alert five minutes before the alarm rings.
有了适量的睡眠，你就应该在闹钟响前的五分钟精神抖擞地醒来。
Perhaps you like to eat cheese right before bed, sleep with all the lights on, or put a pillow beneath your feet instead of your head?
或许你喜欢在临睡前吃点奶酪，睡觉的时候灯一定得都开着，或者是把枕头放在脚下面而不是头下面？
The clock, called Sleep Smart, measures your sleep cycle, and waits for you to be in your lightest phase of sleep before rousing you.
这个被称为“智能睡眠”的闹钟会测量你的睡眠周期，等你进入最浅的睡眠阶段后再叫醒你。
A warm drink of milk before bed has long been the best choice for those wanting a good night's sleep.
对于那些想要一夜好眠的人来说，睡前喝一杯热牛奶一直是最好的选择。
Some students can't sleep well the day before a math exam.
一些学生在数学考试前一天睡不好觉。
The hours of sleep before midnight are thought to be the most helpful.
午夜前的睡眠时间被认为是最有帮助的。
Before you go to sleep, it's a good idea to review the new things you've learned that day.
在睡觉前复习一下今天学的新东西是个好主意。
They found that two hours of sitting before a bright screen at night reduced the sleep chemical levels by about 22%.
他们发现，晚上坐在明亮的屏幕前两小时，会使睡眠化学物质水平降低约22%。
In today's world, sleep experts often say that for a better night's rest, Americans should turn off their smart phones or iPads before sleeping.
当今世界，睡眠专家经常说，为了获得更好的睡眠，美国人应该在睡觉前关掉智能手机或平板电脑。
During your exam period, you want your brain to work at its very best, so build in relaxation time before bed, avoid late night revision sessions and try to go to bed early so you get enough sleep.
在考试期间，你想让你的大脑处于最佳工作状态，所以在睡觉前安排放松时间，避免深夜复习，尽量早点睡觉，这样你就能得到足够的睡眠。
Remember what you said to me before sleep last night?
记得昨晚睡觉前你对我说了什么吗？
Of course, dinner should be smaller than lunch, because your body will have less time to process this meal before sleep.
当然，晚餐分量要比午餐少，因为在睡觉之前你的身体并没有那么多时间消耗了。
She doesn't take up much room, but she does manage to get between us, making it difficult for us to fall into our typical embrace before sleep.
她的确并不占太多位置，但是她的确想方设法呆在我们的中间，这使得我们没法在睡觉前亲热一下。
Stop drinking before sleep, and see if you stop waking up to urinate.
睡觉前停止饮用液体，看看自己能否坚持不用醒来上厕所。
He prays every night before sleep.
他每晚睡觉前都祈祷。
Fill in a dairy group before sleep.
在睡觉前摄入一组奶制品。
Fomentation with warm water, cotton wool and Dettol or salt should be applied at night before sleep.
用暖水，原棉和地特尔或盐热敷，能在夜间睡觉前应用。
Fomentation with warm water, cotton wool and Dettol or salt should be applied at night before sleep.
用暖水，原棉和地特尔或盐热敷，能在夜间睡觉前应用。
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