YOU SAID:

I have never been happier to go to sleep

INTO JAPANESE

私は一度も眠れないほど幸せだった

BACK INTO ENGLISH

I was so happy that I never slept

INTO JAPANESE

私は眠れないほど幸せだった

BACK INTO ENGLISH

I was so happy as to sleep

INTO JAPANESE

私は寝ていてとても幸せだった

BACK INTO ENGLISH

I was very happy because I was asleep.

INTO JAPANESE

私が眠っていたので、とても嬉しかったです。

BACK INTO ENGLISH

I was asleep, so I was very happy.

INTO JAPANESE

私は眠っていたので、とても嬉しかったです。

BACK INTO ENGLISH

I was asleep, so I was very happy.