A night light projector is a device that projects images or patterns onto walls or ceilings, creating a soothing atmosphere in a dark room. These projectors often feature various themes, such as stars, planets, or nature scenes, and can be used to help children feel more comfortable at bedtime. Many models also include calming sounds or music to enhance the relaxing experience. Most night light projectors are designed to be user-friendly, with simple controls for adjusting brightness and projection settings. Some even come with timers, allowing them to turn off automatically after a set period. They are popular in nurseries and children's bedrooms for their ability to create a peaceful environment.