Yes you can use your mouse or keyboard to bring your system out of standby if it has that option availabe in the *DEVICE MANAGER* so go to keyboards in *device manager* and check the 'properties of the 'keyboard'. or any other hardware such as NIC for example.
What you're looking for is "Allow this device
to bring the computer out of standby".
device manager is in the harware tab of ur system properties. press the windows button and pause break button together, then go to harware, and go to device manager.
Then go back into *DEVICE MANAGER* and go to the mouse and go to properties, then go to power management and uncheck "Allow this device
to bring the computer out of standby"