DISSOLVE combined coffee granules and 1 Tbsp. sugar in boiling water. Arrange 1 pkg. ladyfingers on bottom of 13×9-inch dish; brush with 1/2 cup coffee.
BEAT cream cheese in large bowl with mixer until creamy. Add 1/2 cup sugar; mix well. Whisk in COOL WHIP.
SPREAD half the cream cheese mixture over ladyfingers in dish; top with remaining ladyfingers. Brush with remaining coffee mixture; cover with remaining cream cheese mixture. Sprinkle with cocoa powder. Refrigerate 4 hours.