In a medium bowl, combine vanilla wafer crumbs, melted butter, and granulated sugar. Press firmly into the bottom of a 9-inch springform pan.
In a large bowl, beat cream cheese until smooth. Gradually add powdered sugar and vanilla extract, mixing until well combined.
In a separate bowl, whip heavy cream until stiff peaks form. Gently fold whipped cream into the cream cheese mixture.
In another bowl, whisk together instant banana pudding mix and milk until smooth. Let it sit for a few minutes to thicken.
Gently fold the thickened banana pudding into the cream cheese mixture.
Pour the cheesecake filling over the prepared crust and spread evenly.
Cover and refrigerate for at least 4 hours, or until firm.
Before serving, top with whipped cream, sliced bananas, and crushed vanilla wafers.
Notes
This no-bake cheesecake is perfect for a hot day or when you want a quick and impressive dessert. Ensure all ingredients for the filling are at room temperature for the best texture.