A Strange Light

My guess is around 4am. I didn't bothered to look at the time on my phone or bothered to pick up my phone to take a picture. I woke up from laying on my right side and I turned to my left side. There was a soft but not perfectly round white light on the extra greenish blanket I had put up on my bedroom window. The light was about 6 inch is diameter or maybe less. It was at the upper right corner of the window. I know I wasn't sleeping because I looked around my room to see where the light was coming from. The light had to be coming from outside. I have blue window curtain, a 49ers throw blanket, black pendleton imitation blanket, and plus greenish blanket that I put up for the evening to block out the cold. I have to say a light source from outside my room penetrated all the blankets or a focused light beam that came from a UFO. That one moment, I thought that maybe it was neighbor's vehicle headlights and he was leaving for work. I closed my eyes, and then I looked up again at this light, it was gone.