Night lights are often thought of as a source of comfort and security for children. They allow children to feel safe when they're going to sleep in the dark and to still feel connected to the world in a gentle, protective way. The idea of night lights has been around for many centuries. In ancient times, oil lamps and candles were used to illuminate dark areas. Then, in the 18th century, night lights were invented using a combination of gas and oil. This allowed a dim light to be present which was a great source of comfort for children. Nowadays, night lights come in many shapes, sizes and colors. Some feature animated characters, popular cartoon characters or soothing music. Others evoke the peacefulness of nature with scenes of stars, moons and galaxies. Night lights can help children feel safe and secure so they can better relax and drift off into a peaceful sleep. Night lights can also be great educational tools. For instance, some night lights project constellations on the ceiling, allowing children to learn about the stars and their positions in the night sky. Whether used for comfort or education, night lights can provide warmth and safety to children. They are an invaluable asset for any child's bedroom.