Put a layer of Ladyfingers (or slice Twinkies in half - lengthwise) enough to cover the bottom of a 9x13 inch cake pan.

Mash 6 (or more) Heath bars and mix with a 16 ounce carton of thawed Cool Whip (or use real whipped cream).

Spread 1/2 of the candy bar/Cool Whip mixture over the ladyfingers. Put another layer of ladyfingers and another layer of candy bars on top. Place in refrigerator to store.