Night lights are a children's bedroom fixture. They keep the bedroom light on during the night to help young ones sleep soundly. Night lights have been around since the turn of the 20th century, and are generally low power rating and small, giving off just enough light to make a bedroom appear safely lit. Night lights come in many styles, shapes and colors. They can be battery-operated, or plugged into an electrical outlet. Glow-in-the-dark night lights use a fluorescent paint and plate that illuminates in the dark without any other light source. Other night lights can double as a nightlight and a toy, such as night lights shaped like animals, airplanes and cars. The colors of night lights can range from soothing blues and purples to bright reds and yellows. Colors are important as they can affect a child's mood and their overall feeling of well-being. Certain colors are said to calm children down and help them sleep better. When choosing a night light, always remember to get one that is safe for children. There are also other safety tips that parents need to remember. For instance, plugging the night light within three feet of a child's bed can be too bright and can disrupt their sleep patterns. Make sure the night light doesn't get too hot, either, as a hot night light can be a fire hazard. Overall, night lights increase safety in a child's room and also help to reduce fear of the dark. They make bedrooms look and feel welcoming and help children fall asleep quicker and stay asleep longer.