Just looping back to my original post to report a solution to my problem in case others may benefit. I was charging my iPad Pro while in the “open” position and smart connected to my Logitech blutooth keyboard. The keyboard is charged through the ipad which according to an apple genius draws too much power through the charger so it apparently shuts itself down. I’ve now been closing my ipad at night and just plugging in at the side as I normally would and haven’t had an overnight re-charge failure since.