In a medium bowl, combine the white whole wheat flour, cinnamon, salt, and baking soda. In a separate bowl or large measuring cup, stir together the sugar and melted coconut oil (this will help keep the oil from resolidifying). Stir in the Greek yogurt, eggs, and vanilla extract.
Preheat the oven to 350 degrees. Lightly grease a 8x4-inch loaf pan with cooking spray. Line with parchment paper so that you have some overhanging the sides like "handles" then lightly grease again. Set aside.