Does your S8 have the data on/off toggle shortcut?

1. There's no need to "toggle off...during the night"....regardless of your plan, as long as you're at home and on Wi-Fi.....(which is where most people are overnight), with no data being used

2. "calling home".....does not use data

So, what is it you're REALLY trying to say?

I was trying to recite the Ode to Billie Joe but forgot the words. You also don't understand the use of "calling home".