YOU SAID:

I should be going to sleep right now but I'm not tired.

INTO JAPANESE

私は今眠るつもりですが、私は疲れていません。

BACK INTO ENGLISH

I am going to sleep now but I am not tired.

INTO JAPANESE

私は今寝るつもりですが、私は疲れていません。

BACK INTO ENGLISH

I am going to sleep now but I am not tired.