YOU SAID:

Now I am become sleepy, the goer to bed

INTO JAPANESE

眠くなってきたので寝る人です

BACK INTO ENGLISH

I'm a person who goes to sleep because I'm feeling sleepy.

INTO JAPANESE

私は眠いから寝る派です。

BACK INTO ENGLISH

I'm sleepy so I tend to sleep.

INTO JAPANESE

眠いので寝てしまいがちです。

BACK INTO ENGLISH

I'm sleepy so I tend to fall asleep.

INTO JAPANESE

眠いので寝てしまいがちです。

BACK INTO ENGLISH

I'm sleepy so I tend to fall asleep.