Prepare cappuccino according to package directions and set aside.
With an electric mixer, beat cream cheese with heavy cream and sugar until light and fluffy.
Spread a few tablespoons of cream cheese mixture in the bottom of a 2-quart serving dish. Separate ladyfingers. One by one, dip a third of ladyfingers in espresso, then arrange in bottom of dish. Spread with a third of cream cheese mixture. Repeat twice with remaining ladyfingers, cappuccino and cream cheese mixture for a total of three layers.
Dust with cocoa just before serving.
Notes
Can be refrigerated, covered, for up to 1 day.
Adapted from Easy Tiramisu recipe by Martha Stewart.