[killer_carlson]

then you should have walked back into Sleep Country and yelled at the top of your lungs:

"Attention all customers: I just bought my mattress across the street because Sleep Country wouldn't give me as good a deal as the Brick. Just thought you should know".

I had an old boss who did this when buying a car. The salesmen was being a dick so he walked across the street to the Mazda dealership, bought the equivalent car for cash, drove it back to the Toyota dealership, honking the horn and making a huge scene as he pulled in. He went further and pointed out the salesmen who wouldn't give him a deal.