YOU SAID:
I may never sleep tonight
INTO JAPANESE
今夜は絶対に眠れない
BACK INTO ENGLISH
I can never sleep tonight
INTO JAPANESE
今夜は眠れない
BACK INTO ENGLISH
I can't sleep tonight
INTO JAPANESE
今夜は眠れない
BACK INTO ENGLISH
I can't sleep tonight
That didn't even make that much sense in English.