Real Southern Banana Pudding

This is a traditional Southern dessert.  When we first moved to North Carolina and someone asked if we liked banana pudding, I said "No!" because I thought they meant banana-flavored pudding, which is disgusting.  Real banana pudding is basically a trifle and uses actual bananas and vanilla-flavored pudding.  I make this to take to potlucks a lot, or to send to work with Cowboy when they have some shindig or other.  I got this basic recipe from the Salem Hospitality Cookbook, though I've tweaked it a bit.

Real Southern Banana Pudding

2 (3oz) pkgs cook-and-serve vanilla pudding mix
8 oz sour cream (lite is fine)
9 oz Cool Whip (lite is fine)
1 box vanilla wafers
6-8 bananas – slice them as you go

Mix dry vanilla pudding mix, sour cream, and Cool Whip with a spoon or spatula. Line bottom of a large serving bowl or trifle dish with vanilla wafers. Add a layer of pudding mix, top with slices of bananas. Repeat layers, ending with a layer of pudding mix.