YOU SAID:

I am very sleepy, but I do not want to go to bed.

INTO JAPANESE

とても眠いのですが、寝たくないです。

BACK INTO ENGLISH

I'm very sleepy, but I don't want to sleep.

INTO JAPANESE

私はとても眠いですが、眠りたくありません。

BACK INTO ENGLISH

I'm very sleepy, but I don't want to sleep.