He was relieved to see her sleeping deeply.

看到她已熟睡，他放宽了心。

Ove looks like he's sleeping very deeply.

看上去欧维只是睡得很沉的样子。

Those who retained the least had slept less deeply.

睡眠较浅的老年人记得的信息最少。

They sleep very deeply and need little or no food.

它们睡得非常熟，并且几乎不需要食物或不需要食物。

The next morning the Toad was still sleeping deeply when the other two got up.

第二天早上，水鼠和鼹鼠起床了，癞蛤蟆还在呼呼大睡。

Exhausted by the long crossing, they hung up their hammocks and slept deeply for the firsttime in two weeks.

他们周围是没有星光的黑夜，但是黑暗里充满了新鲜空气，经过长途跋涉，他们已经疲惫不堪，于是悬起吊床，两星期中第一次安静地睡了个大觉。

You sleep deeper, you sleep better.

你睡得更深， 你睡得更好。

Have you ever seen anyone sleep so deeply?

你们见过谁能睡得这么香吗？

But we only dream when we sleep deeply.

但只有当我们睡得很熟时，我们才会做梦。

On the first night, the left hemispheres of their brains did not sleep nearly as deeply as their right hemispheres did.

仅在第一个晚上，他们大脑的左半球没有他们的右半球睡得深。

Even though you're sleeping deeply during your REM cycles, your brain actually acts a lot like it does when you're awake.

即使在快速眼动周期中睡得很深，大脑实际上和清醒时一样。

When they slept deeply, he groped into the house then threw the grenade.

当他们睡熟后，他摸索着进了房子，扔出了手榴弹。

But why should they sleep deeply at all? Why should a state of such deep immobilization ever have evolved?

但他们为什么要睡得很沉呢？为什么会出现如此深度固定的状态？

The rain fell steadily all the evening and all the night, dashing against the windows of the castle, and Jill never heard it but slept deeply, past supper time and past midnight.

天傍晚的雨一直不停地下了整整一夜，雨点溅在城堡的窗户上，但吉尔完全没听见，只是沉沉熟睡，睡过了晚饭时刻，睡过了午夜。

That's right, a recent study found that participants who slept on a bed engineered to gently rock were able to fall asleep more quickly, sleep more deeply, and perform better on memory tests the next morning.

这是真的，最近的一项研究发现，睡在被设计成轻轻摇动的床上的参与者能够更快地入睡，睡得更深，在第二天早上的记忆测试中表现得更好。

There lay a young man, fast asleep — sleeping so soundly, so deeply, that he was far, far away from them both. Oh, so remote, so peaceful. He was dreaming. Never wake him up again.

那里躺着一个年轻人，正在熟睡——睡得那么香，那么沉，离他们俩很远很远。哦，那么遥远，那么平静。他在做梦。永远不要再叫醒他。

That's right, a recent study found that participants who slept on a bed engineered to gently rock were able to fall asleep more quickly, sleep more deeply, and perform better on memory tests the next morning so rockabye baby really works!

没错，最近的一项研究发现，睡在设计成轻轻摇晃的床上的参与者能够更快入睡，睡得更沉，第二天早上的记忆测试表现更好，所以摇晃婴儿入睡的方法真的很有效！