Swap the main light: In the last hour before bed, use a softer, warm lamp instead of the bright overhead.
Cover small glows: Dim or cover tiny LEDs (chargers/routers/standby lights) that face the bed.
Tame screens: If you must use a device, lower brightness and keep night mode on.
Tonight, turn off the overhead and switch on one warm lamp.
Don’t block vents or cover hot parts when masking LEDs.