In a large mixing bowl, beat the softened cream cheese, pumpkin, sweetened condensed milk, vanilla, and 1 teaspoon of cinnamon until smooth and creamy.
In a separate bowl, stir together the instant vanilla pudding mix, maple syrup, whipped topping, and remaining 1/2 teaspoon cinnamon until evenly combined.
Arrange 6 cinnamon graham crackers in a single layer on the bottom of an 11 x 7-inch baking pan.
Spread half of the pumpkin cheesecake mixture evenly over the graham crackers.
Add the remaining 6 graham crackers in a second layer.
Drizzle 1/3 cup of caramel sauce evenly over the graham cracker layer.
Spread the remaining pumpkin cheesecake mixture over the crackers and caramel.
Spread the pudding and whipped topping mixture evenly over the cheesecake layer.
Drizzle the remaining 1/3 cup caramel sauce over the top and sprinkle with toffee bits.
Cover and freeze for at least 4 hours, or until firm.
Let the dessert thaw slightly before cutting if it is too firm to slice.
Before serving, add a dollop of whipped cream and a sprinkle of additional toffee bits.