Why You Should Always Sleep With

r years, I slept with my bedroom door wide open. My dog loved the freedom to pad in for midnight cuddles. I appreciated the gentle cross-breeze. And if my children called out in the night, I could hear them instantly. It felt cozy. Connected. Safe, even.Doors & Windows Then I watched a fire safety demonstration that changed everything. In a controlled experiment conducted by the UL Firefighter Safety Research Institute, two identical bedrooms were exposed to the same simulated house fire—one with the door open, the other securely closed. The results were stark: The room with the open door was fully