Indoor air in winter in Minnesota has a moisture content lower than the Sahara. The furnace is on, doors and windows are sealed against the cold, and static shocks are a fact of life.
Breathing that air makes your throat dry, and you wake at night with a dry cough that seems to propagate itself. What to do?
I found sugarless gum works! It doesn't melt like a coughdrop, it keeps saliva flowing just a bit, and you wake with nice minty breath!