A lucid dream mask uses light technology to simulate sunrise and sunset so that you wake up gradually. It also has an adjustable shrill alarm that plays when you need to wake up. Some snooze-inducing light-up dream masks can even connect to an app to create a personalized waking signal. The light-up dream mask is a must-have if you are a serious lucid dreamer. A lucid dream mask works by stimulating your brain while you sleep, but is not intended to arouse you. These signals can be turned on and off as desired, and may become part of your dream environment. Some lucid dream masks produce light cues while you…