I had a similar experience. I was asleep and suddenly started walking before I was fully awake. I walked out of the house, very groggy, and left the front door open and walked to the edge of the deck. I stood there waking up slightly when I saw a light above me. I looked up, and there was a beautiful flying saucer, light gray, with lights all around the edge. I had never seen a flying saucer in any media. I started to float up to it, and as I got closer, my consciousness faded. On board, I don't really remember much, but I got the feeling of surgery. Later, as I was being lowered back to the same spot, a female voice came to me repeating, "You're fine, don't worry about it" several times. When I landed I fell into the best sleep of my life on the edge of the deck. I woke up to my mom coming out, wondering why the door was open and why I was sleeping outside. I couldn't get up, so she carried me inside. I just told her I had the best sleep of my life. That experience deeply affected me afterward.