Glow in The Dark Stars Stickers - 200 Luminous Wall Decals for Kids Bedroom & Nursery - Perfect for Ceiling Decor, Night Light, and Space-Themed Room Design

These lasted stayed lasting the two years I stayed at a house and only came down when I took them down, they remained glowing till then too not as strong but enough you could still notice them. I may stick them up in my new place but we will see.