他很粗鲁，我半睡半醒的。

He was rude, I was half asleep.

youdao

不知为何我脑海中闪过的是-浴室可能有青蛙，也许因为我半睡半醒的原因吧。

For some reason I had it in my head that there was a frog in the bath. I think that was because I was half asleep.

youdao

我当时半睡半醒。

I was in that half-and-half land where you are not completely asleep nor completely awake.

《牛津词典》

So, if you're woken up during slow-wave sleep you're going to be thinking "Did I take the-- yes, while I was dreaming I was thinking about the garbage," but if you're woken up during REM, "But a monkey was eating my grandmother," and that sort of thing. So, there is a distinction.

在慢波睡眠中醒过来,你会想“我倒垃圾了吗？,原来我睡觉是想着倒垃圾了”,但如果你在REM睡眠中醒过来，“天啊，有只猴子在吃我奶奶”,这就是真正的梦和半睡半醒的想法之间的区别。

耶鲁公开课 - 心理学导论课程节选