YOU SAID:

I sprang from the bed to see what was the matter.

INTO JAPANESE

私は何があったのか見るためにベッドから飛び起きた。

BACK INTO ENGLISH

I jumped out of bed to see what was going on.

INTO JAPANESE

私は何が起こっているのか見るためにベッドから飛び起きた。

BACK INTO ENGLISH

I jumped out of bed to see what was going on.