Don't know for sure. You may be sleeping with your eyes open. I've seen two other people do it. One swore she had her eyes closed and saw nothing of the room and its contents but rather the beach she was dreaming about. Your subconcious sees and thinks "I'm dreaming, therefore this must be the dream". On the other hand, My wife got a serious infection in Mexico as a teenager. She wound up in the hospital and after a big shot of linkacin, flat-lined on the table. She swears she rose up above the table and looked down on her own body. She had 360 degree vision too. The nurse brought in the paddles to shock her and she thought "that's going to hurt" She swears she jumped back in and said "Wait, I'm back" just a second before the heart monitor started beeping again. If you could have a picture put into your room after you're asleep and see it before you wake up, it could tell you if you are remembering or seeing. If you wear eveshades and still see it it could tell you if this is true second sight.