There are a few reasons why your PlayStation 4 might be turning on by itself. One reason could be that the console is experiencing a power outage. If this is the case, you can try to reset the console by pressing the power button and then using the reset button on your controller to turn it back on. Another possibility could be that something is wrong with your PlayStation 4’s firmware. If this is the case, you can visit your PlayStation 4’s website or contact Sony customer service to get help troubleshooting your console.