YOU SAID:

There will be other days to sleep.

INTO JAPANESE

眠る日もあるでしょう。

BACK INTO ENGLISH

Some days you will sleep.

INTO JAPANESE

寝てしまう日もあります。

BACK INTO ENGLISH

Some days I fall asleep.

INTO JAPANESE

眠ってしまう日もある。

BACK INTO ENGLISH

Some days I fall asleep.