Please do post your full experience, I'd be interested. I saw an article this morning and it spurred me to buy some smart plugs to cut power overnight to standby devices (https://www.telegraph.co.uk/bills-and-utilities/gas-electric...)
I have one in my desk that's then plugged to a power strip so it can cut power to multiple devices at once. It can even measure power consumption – sitting at around 80W as I type this, with a laptop, 34" monitor, Echo, wireless charger, USB switcher, USB hub, a desktop computer currently 'off', standing desk, laptop dock and the list goes on.