I sleep on the third floor.

　　我睡在3樓。

　　Ros fell into a deep sleep.

　　羅斯睡著了，睡得很沉。

　　She sank into a deep sleep.

　　她沉沉地睡去。

　　She sang the baby to sleep.

　　她唱著歌把孩子哄睡了。

　　I needed to get some sleep.

　　我需要睡一會(huì)兒。