Mix together oats, chia seeds, cocoa powder, soymilk, and maple syrup (optional) in a small bowl.
Divide equally among two individual 2-cup containers, such as Mason jars or Weck glass jar storage containers.
Cover and chill overnight (or about 4 hours).
Top each container with: ½ cup cherries, 1 tablespoon walnuts, and 1 teaspoon cocoa nibs.
Cover and store until serving time or enjoy immediately.