The glowing paper
At Create Your Sky we use high quality glowing paper to ensure the stars will glow long enough so that you can enjoy them for as long as you want before falling asleep.
All that is needed is some daylight or less than 5 minutes of light from a regular ceiling light and you will be amazed for how long they can glow.
They are completely safe, non-toxic, and non-radioactive and fulfill all necessary regulations.