I've had an outer body experience myself, so I would have to say yes they are real. The only true way to prove that such an existence to be true is to experience it for yourself.
I was fully conscious at the time of this happening, and it wasn't due to any assistance of drugs or anything such as a dream state or illusion. I was simply able to see myself for a brief moment as I sat in a couch at home, and trust me this wasn't a joke when it happened to me many years back. It almost felt as if I could navigate myself, like as if I was playing a video game, and had control of the character with a joystick.
Awesome! question by the way.