YOU SAID:
Yesterday I went to bedxl early
INTO JAPANESE
昨日私は早くベッドに行きました
BACK INTO ENGLISH
Yesterday i went to bed early
INTO JAPANESE
昨日早く寝た
BACK INTO ENGLISH
I slept early yesterday
INTO JAPANESE
昨日早く寝た
BACK INTO ENGLISH
I slept early yesterday
That didn't even make that much sense in English.