YOU SAID:
I would like to go to bed
INTO JAPANESE
私は寝たいです
BACK INTO ENGLISH
I want to go to bed.
INTO JAPANESE
早く寝なさい
BACK INTO ENGLISH
I want you to go to bed.
INTO JAPANESE
早く寝なさい
BACK INTO ENGLISH
I want you to go to bed.
That didn't even make that much sense in English.