详细解释:入睡, 睡着
词意辨析：
go to bed, go to sleep这两个词组意义很相近,但却有所不同。
go to bed: 意思是“ * ”、“就寝”，bed之前不能加定冠词the，也不能加this、that、your、my等词，因为它是固定词组。在下列的固定词组中，我们也不能加上列的词，否则意义将要改变：get to bed，put to bed，take to bed，lie in bed，out of bed等。when did you go to bed last night?
昨晚你几点钟 * ？i usually go to bed at eleven.
我通常十一点就寝。
go to sleep: 意思是“入睡”、“睡着”。因此，go to bed并不等于go to sleep.如所周知，一个失眠的人往往在go to bed之后过了很久也不能 go to sleep.last night i was too excited to go to sleep.
昨晚我激动得不能入睡。i went to sleep at two this morning.
今晨两点我才睡着。英语解释：
动词 go to sleep:
prepare for sleep同义词：go to bed, turn in, bed, crawl in, kip down, hit the hay, hit the sack, sack out, retire