YOU SAID:

I love the way my roommate smells different when he is sleeping compared to when they are awake.

INTO JAPANESE

彼らが目を覚ましているときと比べて、私のルームメイトの匂いが違うような気がする。

BACK INTO ENGLISH

Compared to when they are awake, the smell of my roommate seems to be different.

INTO JAPANESE

彼らが起きている時と比べて、私のルームメイトの匂いは違っているようです。

BACK INTO ENGLISH

Compared with when they are up, the smell of my roommate seems to be different.

INTO JAPANESE

彼らが立ち上がっているときと比べて、私のルームメイトの匂いは違っているようです。

BACK INTO ENGLISH

The smell of my roommate seems to be different as compared to when they are standing up.

INTO JAPANESE

私のルームメイトの匂いは、立ち上がっているときと違っているようです。

BACK INTO ENGLISH

The smell of my roommate seems to be different from when I was standing up.

INTO JAPANESE

私のルームメイトの匂いは、私が立っていたときとは違うようです。

BACK INTO ENGLISH

The smell of my roommate seems to be different from when I was standing.

INTO JAPANESE

私のルームメイトの匂いは、私が立っていた時とは違うようです。

BACK INTO ENGLISH

The smell of my roommate seems to be different from when I was standing.