Prevent Screen Sleep: To prevent your screen from dimming or auto-locking while blindfolded:

• Apple/iOS: Adjust Auto-Lock to "Never", turn off Low Power Mode, and turn off Attention Aware features. You may also need to turn off Auto-Brightness.
• Android/Samsung: Extend Screen Timeout, turn off Adaptive Brightness in display settings, and ensure Power Saving is off.
• Mac/Windows: Adjust "Energy Saver" (Mac) or "Power & Sleep" (Windows) settings to prevent the display from turning off.

Tip: Just to be safe, tap the center of the screen (mobile) or nudge the mouse/trackpad (computer) every so often to keep it from dimming.