How long will the stars glow?

Our Super-3 Creation Paint™ glows for up to an hour and is brightest in the first 15 minutes. It slowly fades as the star gazer falls asleep. Great for young children's rooms. As the stars dim, it makes their little eyes slam shut so they can get some sleep. Parents like that benefit! The Super-10 Creation Paint glows all night and is brightest in the first couple of hours.