No, I'm British, I have tried cool whip before though, I hosted a Thanksgiving dinner at my house as the American Exchange student at my college was a bit homesick. She got her Mum to send over a huge box filled with American things to make thanksgiving dinner, it was fun, but I don't really remember what the cool whip tasted like, we had it on pumpkin pie. This was before American cups were standard in UK households a well, so we were guestimating how much a cup was 
The pudding recipe I made required me to cook it on the stove IIRC and it was creamier than angel delight, had a different consistency as well, more custard consistency. I let it cool and then we ate it, it was really nice. Maybe I'm thinking of entirely the wrong kind of pudding though!
That was it, Dream Topping not Dream Whip :) I haven't seen it in years, do shops still sell it? 
I will check Amazon, never thought about that.
I've just realised that I wouldn't be able to make the cool whip substitute as it uses gelatine, so Dream Topping or cream it is I think!
I would be happy using anything in layers though tbh, it's more that I want to ensure that they don't soak into each other! The consistency is what keeps it all in layers.