I had awoken earlier than normal, got something to eat, then decided to go back to sleep. After I went back to sleep I kept having broken up sleep, sleeping for 15 minutes at a time and waking up frequently.
On one of these occasions when I opened my eyes I saw that my door had been replaced with a closet, so I had two closets in my room. Almost immediately I heard a woman screaming very loudly and my adrenaline started pumping. I then woke up for real.
If you thought that you were awake when you "woke up" in your room, then it was a False Awakening.
If it was a conscious OBE, you would be aware of the fact that you were in your room while OOB.