Night lights, also referred to as night-lights, are devices used to provide lighting in dark or dim environments. They are usually used in bedrooms, bathrooms, hallways, children's rooms and other areas that may require illumination in the dark. Night lights have been around since the late 19th century. Back then, they were simple candles set in holders that were able to provide a small amount of light. Over the past decades, night lights have evolved to become more energy efficient and cost-effective. Nowadays, they are available in various shapes, sizes, and styles to suit any purpose. The most common type of night lights are plug-in night lights which are small bulbs fitted into a socket. These bulbs come in many various sizes and colors and usually have a switch that controls when they are on and off. Other types of night lights are cordless night lights, which can be useful and more convenient for places without an electrical outlet. Night lights are essential for providing illumination in the dark. They are also helpful for providing a source of comfort and reassurance, especially to younger children. They can help create a calming and relaxed atmosphere in a room and keep people safe in case of an emergency. Furthermore, night lights can also lessen the shock of waking up in the dark. Overall, night lights are a great investment that can help people sleep better and be safer during the night. Not to mention, they look great as well!