Start by unwrapping the oatmeal cream pie cookies. Place them in a food processor and pulse until they turn into fine crumbs.
In a mixing bowl, combine the cookie crumbs with melted butter. Stir until the mixture resembles wet sand. Press the crumb mixture firmly into the bottom of the springform pan.
In another large mixing bowl, beat the softened cream cheese with an electric mixer until smooth and creamy. Gradually add the granulated sugar, continuing to mix until fully incorporated.
Gently fold the thawed whipped topping into the cream cheese mixture using a rubber spatula.
Pour the cheesecake filling over the prepared cookie crust, smoothing the top with a spatula.
Cover the cheesecake with plastic wrap and refrigerate for at least 4 hours, or until set. For best results, let it chill overnight.
Once set, remove the cheesecake from the springform pan and slice into pieces. Serve chilled.