YOU SAID:

I was so sleepy I put salt in my coffee instead of sugar

INTO JAPANESE

私はとても眠くて、砂糖の代わりにコーヒーに塩を入れる

BACK INTO ENGLISH

I am very sleepy, put salt in coffee instead of sugar

INTO JAPANESE

私は非常に眠く、砂糖の代わりにコーヒーに塩を入れる

BACK INTO ENGLISH

I am very sleepy, put salt in coffee instead of sugar