YOU SAID:
I have not slept one wink
INTO JAPANESE
私は一瞬も眠っていません
BACK INTO ENGLISH
I haven't slept for a moment
INTO JAPANESE
しばらく寝ていません
BACK INTO ENGLISH
I haven't slept for a while
INTO JAPANESE
しばらく寝ていません
BACK INTO ENGLISH
I haven't slept for a while
Come on, you can do better than that.