我坐在极小的空间里面，不知不觉睡着了。

I sat in a very small space inside, unconsciously asleep.

youdao

不知不觉我又睡着了。

I began falling back to sleep.

youdao

终于，有天早上四点左右，我不知不觉的睡着了，睡得很不安宁。

Finally, one morning at around four o'clock, I dropped into a restless slumber.

youdao

终于，有天早上四点左右，我不知不觉的睡着了，睡得很不安宁。

Finally, one morning at around four o'clock, I dropped into a restless slumber.

youdao