Add the cream cheese and granulated sugar to a mixing bowl. Beat until smooth and creamy, and the sugar is well incorporated. Fold in 3 ounces of whipped topping.
Spread the cream cheese mixture evenly over the bottom of a 9-inch pie plate.
Pumpkin Pie Mousse (Middle)
Add the heavy whipping cream to a separate mixing bowl. Beat with an electric mixer until stiff peaks form. Set aside.
In another bowl, beat the cream cheese and brown sugar until smooth. Add the pumpkin puree, vanilla extract, cinnamon, cloves, nutmeg, and ginger. Mix until completely combined.
Gently fold the whipped cream into the pumpkin mixture until evenly combined and fluffy.
Carefully spread the pumpkin pie mousse over the cream cheese layer.
Refrigerate for 2 hours to let it set before adding the whipped topping in the next step.
Whipped Topping
Spread the remaining 1 ¼ cups of Cool Whip over the pumpkin mousse.
Optionally, cut a pumpkin stencil out of paper and lay it over the whipped topping. Sprinkle ground cinnamon inside the stencil. Carefully remove the stencil.
Serve chilled with graham crackers, gingersnaps, oatmeal cookies, Chessman cookies, Teddy Grahams, Biscoff cookies, vanilla wafers, or apple slices.