I'm quite sure brand advertisers will not concur.
We're in a crisis and they want to waste energy we might need for heating households to manipulate people into buying shit they don't need?
That's not exactly a position that'll get them a lot of sympathy.
This is encouraged by our system, switching off screens at night won't change it. Attack the root cause not the very last symptom
But sure, let's stop using plastic straws and switch off our routers at night while we continue absolutely ravaging this planet