How to tell if device is sleeping

Question

Here\'s my scenario. I have an app that is playing backgound sounds. Using the BroadcastReceiver I can tell when the display turns off, and then kill the sounds. I can also

Answer 1

((PowerManager) getSystemService(Context.POWER_SERVICE)).isScreenOn()

tells if the screen is on. So, it gets true if the screen is on but the device is locked. Instead,

inKeyguardRestrictedInputMode()

gets true just if the device is locked.