When Windows 8 enters a power-saving state like sleep or hibernation, it disables most of the hardware components, including the monitor, mouse, keyboard and network adapter. Most computer models won't return to their original state unless you push the power button. You can, however, configure the power options to wake the PC when a Bluetooth device is in use.
Press "Windows-X," select "Device Manager" from the context menu, and then double-click the appropriate category. For example, to wake the computer with a Bluetooth mouse, double-click "Mice and Other Pointing Devices."
Double-click the applicable device. Select the "Power Management" tab and then check "Allow This Device to Wake the Computer."
Click "OK" to close the window and save your changes.
Tips & Warnings
- If the option is grayed out on the Power Management tab, double-click "Bluetooth Radios," right-click the Bluetooth adapter, and then select "Properties." Follow the same process as above to allow the device to wake the computer.