sleep [sth] offvtr phrasal sepphrasal verb, transitive, separable: Verb with adverb(s) or preposition(s), having special meaning, divisible--for example, "call off" [=cancel], "call the game off," "call off the game."
informal (recover from by sleeping)
睡一觉就好了 shuì yí jiào jiù hǎo le
通过睡眠来恢复
通过睡眠来消除
He had a lot to drink last night, and is still sleeping it off.