No Bake Pumpkin Cheesecake Bars

Name: No Bake Pumpkin Cheesecake Bars
Prep time: 35 min
Total time: 35 min
Cuisine: American
Ingredients: 2 sleeves (18 sheets graham crackers (approximately 2 cups of crumbs)); 2 tablespoons white granulated sugar; 1/2 teaspoon ground cinnamon; 1 cup salted butter (melted); 2 8oz bricks of cream cheese, softened; 1 cup powdered sugar; 1/4 cup packed brown sugar; 1 cup pumpkin puree; 2 1/4 teaspoons pumpkin pie spice* (see notes for substitution); 1 teaspoon vanilla extract; 1 12oz container whipped topping, thawed (like Cool Whip)