In a mixing bowl, whip the heavy cream on medium-high speed until stiff peaks form, about 3-5 minutes.

In a separate bowl, mix softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy, about 2-3 minutes.

Gently fold whipped cream into cream cheese mixture until fully combined.

Layer Birthday Cake Oreos at the bottom of a 9x13 inch dish.

Spread half of the cream mixture over the Oreos, smoothing it out evenly.

Add another layer of Birthday Cake Oreos followed by the remaining cream mixture.

Sprinkle colorful sprinkles over the top layer of cream.

Cover the dish with plastic wrap and refrigerate for at least 4 hours, preferably overnight.

Slice and serve chilled.