Stranded on an Island

If I were stranded on a desert island I would bring a very large, warm, water-resistant blanket as well as a solar powered flashlight. I need the blanket because I feel very comforted by large fuzzy blankets. It would keep me warm and dry for the cold nights. The flashlight is an absolute necessity because I get very anxious in the wild at night when I can't see my surroundings. The flashlight would also make it so that I could make myself visible to any plane that might fly overhead during the night.