YOU SAID:

I haven’t slept in two days.

INTO JAPANESE

2日間寝ていません。

BACK INTO ENGLISH

I haven't slept in two days.

INTO JAPANESE

何日も眠っていない。

BACK INTO ENGLISH

I haven't slept in days.

INTO JAPANESE

何日も眠っていない。

BACK INTO ENGLISH

I haven't slept in days.