In a jar or airtight container, combine the rolled oats, milk, brewed coffee, yogurt, caramel sauce, vanilla extract, chia seeds, and salt.
Stir well until all ingredients are fully mixed together.
Seal the container and refrigerate overnight or for at least 6 hours.
In the morning, give the oats a good stir. If the oats are too thick, add a splash of milk to loosen them up.
Top with whipped cream, extra caramel drizzle, cocoa powder, or chopped nuts if desired.
Enjoy cold straight from the jar, or warm gently in the microwave if preferred.