Caramel Chocolate Trifle

1 pkg. devil’s food cake mix

2 pkgs (3.9 oz. each) instant chocolate pudding mix

1 12 oz. Cool Whip thawed

1 jar (12 ¼ oz.) caramel ice cream topping

1 pkg. English toffee bits, or crushed up candy bars

Prepare cake mix as directed.  Cool.  Prepare pudding according to package directions.  Cut half cake into 1 ½ in. cubes.  Set the rest aside to eat later.  Place half of the cake cubes in 3 qt. trifle bowl or large bowl.  Press lightly down to fill gaps.  Top with half each of the whipped topping, pudding, caramel topping and toffee bits.  Repeat layers.  Cover and refrigerate.