YOU SAID:

It's so late we should sleep

INTO JAPANESE

あまりに遅く寝る必要があります。

BACK INTO ENGLISH

You should sleep in too late.

INTO JAPANESE

あなたは手遅れ眠る必要があります。

BACK INTO ENGLISH

You need your sleep too late.

INTO JAPANESE

遅すぎるあなたの睡眠が必要です。

BACK INTO ENGLISH

You need your sleep too late.