What is Light trespass?

Light trespass is when light from somewhere else ends up in your room or yard, even though it shouldn’t.

Imagine you’re sleeping in your bed at night, and suddenly a bright light shines right on your face, not because you turned on the lamp, but because the neighbor left their front porch light on all night. That’s light trespass! It’s like when your friend brings a loud toy to your house and it wakes up everyone in the neighborhood.

Sometimes lights from outside shine through windows or doors, like a streetlamp shining into your bedroom window, making it hard for you to fall asleep. Or maybe a big building across the street has too many bright lights, and they spill over into your yard, making it feel like it’s still daytime when it's supposed to be nighttime.

It’s kind of like having a big flashlight turned on next to you while you're trying to read a book, you can’t focus because the light is too bright and in your eyes. Light trespass makes it hard for people to sleep, relax, or enjoy the night.