Sleepwalking happens during deep sleep.

梦游发生在深度睡眠期间。

It usually happens in the first few hours of sleep in the period called deep sleep.

它通常发生在睡眠的最初几个小时，这个阶段被称为深度睡眠阶段。

During stages three and four (often called "deep sleep") , it is very hard to wake up a person.

在第三和第四阶段（通常称为“深度睡眠”），这时唤醒一个人是很难的。

This was during the first deep sleep period, the researchers said.

研究人员说，这发生在第一次深度睡眠期间。

It was specifically observed that the left side of the brain was more active during deep sleep.

人们特别注意到，在深度睡眠时，左脑更加活跃。

During deep sleep, the participants' brains behaved in a similar manner seen in birds and dolphins.

深度睡眠时，参与者的大脑表现与鸟类、海豚相似。

When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sleep.

当研究人员在第二和第三晚重复实验室里的实验时，他们发现在深度睡眠时左脑不能以同样的方式受到刺激。

Una soon fell into a deep sleep.

尤纳很快就睡熟了。

She sank into a deep sleep.

她沉沉地睡去。

Ros fell into a deep sleep.

罗斯睡着了，睡得很沉。

I awoke from a deep sleep.

我从沉睡中醒来。

She had just woken from a deep sleep.

她刚从熟睡中醒来。

Your body needs to experience all three steps of sleep—light sleep, dream, and deep sleep—to fully repair itself.

你的身体需要经历睡眠的三个步骤——浅睡眠、做梦和深睡眠——从而进行完全的自我修复。

Deep sleep came to him.

他睡得很熟。

Get enough and deep sleep.

保持足够且具有深度睡眠。

He's drunk and in a deep sleep now.

他喝醉了，睡得死死的。

There are also psychological benefits of deep sleep.

深睡眠还有心理学上的益处。

I was so relaxed, and soon I fell into a deep sleep.

我是如此放松，很快就熟睡了。

I roused up from deep sleep when the storm came suddenly.

暴风雨突然降临，我从沉睡中惊醒。

Parrot:I know the reason. He's drunk and in a deep sleep now.

我知道原因。他喝醉了，睡得死死的。

The fact of long and deep sleep will save you from memory loss.

事实上，长且深的睡眠能够防止记忆力的丧失。

Many important physiological processes occur during deep sleep.

很多重要的生理活动都发生在深睡眠阶段。

It's not that He simply wakes up those in a deep, deep sleep.

他并不只是将他们从沉睡中唤醒。

They searched for it in three areas of the brain known to be associated with deep sleep.

他们在家鼠大脑的三个与深沉睡眠有关的部位找寻了此蛋白的存在.

Subjectively deep sleep is a time of nearly complete disengagement from the environment.

深睡眠阶段在主观上就是一段与外界环境几乎完全脱离的时间。

What we hear during deep sleep can strengthen memories of information learned while awake.

我们在深睡眠时所听到的东西可加强我们清醒时所学知识的记忆。