Line a 9x13-inch baking dish with parchment paper.
Place a layer of ice cream sandwiches at the bottom of the dish.
Spread a layer of softened ice cream over the sandwiches.
Drizzle chocolate or caramel sauce on top of the ice cream layer.
Add a layer of whipped topping over the sauce.
Sprinkle crushed cookies if desired for added texture.
Repeat the layering process until ingredients are used up.
Finish with a final layer of whipped topping and decorate with fresh berries.
Cover with plastic wrap and freeze for at least 4 hours or overnight.
Slice and serve directly from the freezer.