Sleep talking in my second Language?

I have a roommate, and she tells me that I talk in my sleep. I sometimes speak in full sentences, such as “the Jacuzzi was good,” or I mumble. When I wake up I don’t remember what I talked about at all.

Photo Credit: frontiersin.org

I’ve heard that people dream in the language they are most comfortable speaking. My roommate says I speak in both English and in Japanese. I was speaking mostly Japanese until I was 16 years old, but I’ve been using more English these past three years. I thought I was more fluent in Japanese just by the number of years I’ve used it in comparison to English, but it seems like now I know English just as well.

I was trying my best not to speak in Japanese, not to read in Japanese and not to watch Japanese T.V. shows for the past three years in order to be more fluent in English. But I never thought I would be as fluent in English as Japanese. So I am very proud of myself for achieving my goal of being bilingual.