YOU SAID:

when i woke up, Harry Potter was in my bed

INTO JAPANESE

私が目覚めたとき、ハリーポッターは私のベッドにいました

BACK INTO ENGLISH

Harry Potter was in my bed when I woke up

INTO JAPANESE

目が覚めたとき、ハリーポッターは私のベッドにいました

BACK INTO ENGLISH

Harry Potter was in my bed when I woke up