Have you experienced waking up in the middle of the night and getting surprised because you though you saw a ghost? That happened to me many times. I thought I saw a ghost when a white shirt hanging on the wall or when I saw my sister right after she put her night cream! Maybe because of my being a coward when it comes to ghosts I imagine things when it’s dark. So I sleep with lights on. I find this time operated light that will automatically turns off after thirty minutes so that I can conserve electricity.