HEAT oven to 350ºF.
CRUSH 30 wafers; mix with next 4 ingredients. Spread onto bottom of 15x10x1-inch pan sprayed with cooking spray. Bake 5 min.; stir. Bake 3 to 5 min. or until golden brown; cool.
BEAT pudding mixes and milk in medium bowl with whisk 2 min. (Pudding will be thick.) Stir in 1 cup COOL WHIP.
LAYER 1/3 of the crumb mixture and half each of the bananas and pudding in 2-qt. serving bowl; repeat. Beat cream cheese and granulated sugar in medium bowl with mixer until blended. Gently stir in 1 cup of the remaining COOL WHIP; spread over top of dessert, sealing to edge of bowl. Sprinkle with remaining crumb mixture. Refrigerate 3 hours.
TOP each serving with remaining COOL WHIP and whole wafers just before serving.