The Insomniac PC
Windows 11 is designed to be highly responsive, waking from a sleep state the moment you need it. By default, the operating system allows various hardware components—like your mouse, keyboard, or even your network card—to “wake” the computer. While convenient during the day, this becomes incredibly frustrating at night. If you put your PC to sleep, a slight vibration that nudges your mouse, or a random ping from your local network router to your Ethernet port, can cause the computer to automatically wake up, spinning up loud fans and illuminating dark rooms while you are trying to sleep.
Revoking Wake Permissions
To keep your PC dormant and stop Windows 11 from automatically waking from sleep, you must manually revoke the “wake permissions” from specific hardware devices using the Device Manager.
Press the Windows Key, type Device Manager, and hit Enter. This utility lists all the hardware attached to your PC. To stop your mouse from waking the PC (the most common culprit), click the arrow next to Mice and other pointing devices. Right-click your specific mouse (often listed as “HID-compliant mouse”) and select Properties. Go to the Power Management tab. Uncheck the box that says Allow this device to wake the computer and click OK. To stop network pings from waking the PC, expand the Network adapters section, right-click your active Ethernet or Wi-Fi card, select Properties > Power Management, and uncheck the same “Allow this device to wake the computer” box (or uncheck “Only allow a magic packet to wake the computer”).