Preheat the oven to 350° and grease a 9x13 baking dish and set aside. In a large mixing bowl add the pumpkin and yellow cake mix. Stir until completely combined. Pour and spread evenly into the prepared baking dish. Add to the oven and cook for the time that’s said on the back of the cake box. Mine was done in around 30 minutes.
Once done, remove from the oven and let sit and cool for 10 minutes. Using the end of a wooden utensil poke holes throughout the top of the cake and pour the sweetened condensed milk all over top and spread all around. Place in the fridge for 30 minutes.
Add the cool whip on top and spread evenly. Sprinkle all the heath bits all over top and add the caramel sauce to a zip lock bag, cut the tip off and drizzle all over top of the cake. Add the cake to the fridge for 2-4 hours. Slice and enjoy!