Disclaimer
NoSleepScreen is designed as a simple utility. This disclaimer explains what the tool should and should not be relied on for in real-world use.
The NoSleepScreen site and its guide pages are provided for general informational purposes and utility use. The content is meant to help visitors understand browser-based wake lock, not to provide professional legal, technical, or operational guarantees.
Wake-lock behavior can change based on browser version, operating system, battery mode, permissions, visibility state, and device policies. The site attempts to describe those limitations clearly, but real-world results can still differ from one environment to another.
Keeping the screen awake can increase battery usage and may not be ideal on every device. Visitors should use shorter timers when possible and should not assume the tool is appropriate for long, unattended mobile sessions.
NoSleepScreen should not be the sole mechanism used for medical, industrial, emergency, or safety-critical monitoring. If a workflow depends on a screen remaining visible without interruption, dedicated hardware or managed system settings are a better fit than a browser tab.