Preheat your oven to 350 degrees F. Liberally grease a 12-cup bundt pan with butter or non-stick cooking spray. Set aside.
In a medium bowl, stir together 1/4 cup of brown sugar, granulated sugar, cinnamon, and nutmeg until evenly combined. Set aside. Open the biscuit cans and separate the biscuits. Cut each biscuit into quarters.
Add 5-6 biscuit pieces into the cinnamon sugar mixture a toss to coat. Place the coated pieces into the prepared bundt pan. Repeat until there is a full layer in the pan.
Add some crumbled bacon over the biscuits. Then continue coating and layering the biscuit pieces while adding bacon as you assemble. Set aside. (Reserve some of the bacon for garnish later.)
To a small saucepan add the butter, the remaining 3/4 cup of brown sugar, vanilla, and maple syrup. Place over medium-high heat and whisk until the sugar has dissolved and the sauce is smooth. Remove from the heat when the sauce starts to bubble.
Pour the sauce over the biscuits and bacon so that the pan is mostly filled.
Bake for 35 minutes or until the biscuits are golden brown. Remove the pan from the oven and let rest for 10-15 minutes.
Place a large plate over the bundt pan and then invert the pan onto the plate to remove the monkey bread from the pan. (You may need to run a knife around the edge of the bread before flipping to make it release more easily.) Sprinkle with more chopped bacon before serving.
Notes
Cooking time includes 10 minutes to cook the bacon.