05/24/2026
Your bedroom at 2am — is it actually dark? Or is it collecting light from nine different sources you stopped noticing?
The phone charger. The standby dot on the television. The smoke alarm pulse. The edge of the curtain that does not quite reach the sill. The hallway light under the door. Even small amounts of ambient light during sleep suppress melatonin production and disrupt deep sleep architecture. The body evolved for true dark — the kind that existed before electricity, before cities, before screens. Darkness is not the absence of light. It is a designed condition. And it costs nothing to create.
Darkness is not a luxury. It is a physiological requirement. When did your bedroom last give it to you?