Founded in Finland, where the light never quite plays by the rules.

In June the sun barely sets. It's bright at midnight and bright again at three. In December it hardly rises at all.

Growing up with both, you learn one thing early: good sleep needs real darkness, and you can't always count on the sky to give it to you.

That's where Northdusk starts. We make simple things that help you sleep, starting with a mask that blocks light at the edges without pressing on your eyes.