Preheat the oven to 325°F (163°C). Grease a 9-inch springform pan.
Make the crust: In a bowl, mix the crushed frosted animal cookies with melted butter until combined. Press the mixture firmly into the bottom of the springform pan. Bake for 8 minutes, then set aside to cool.
Prepare the cheesecake filling: In a large bowl, beat the cream cheese and sugar together until smooth. Add the sour cream and vanilla extract, mixing until combined.
Add the eggs one at a time, mixing just until incorporated. Do not overmix.
Gently fold in the crushed frosted animal cookies. If desired, add a drop or two of pink food coloring to give the cheesecake a fun pink hue.
Bake the cheesecake: Pour the filling over the crust and smooth the top. Bake for 50-55 minutes, or until the edges are set and the center has a slight jiggle.
Cool and chill: Turn off the oven and let the cheesecake cool inside with the door slightly open for 1 hour. Then refrigerate for at least 4 hours, preferably overnight.
Prepare the whipped topping: Beat the heavy whipping cream, powdered sugar, and vanilla extract until stiff peaks form.
Decorate: Pipe the whipped cream onto the cheesecake, then garnish with extra frosted animal cookies and colorful sprinkles.
Slice and serve!