Tempur-Pedic and/or Memory Foam mattresses are the hottest sellers on the mattress market today, and just about everyone wants one — or at least, they think they do. Almost half of the customers who walked into my mattress store would announce, "I want to look at your Memory Foam mattresses. I've been reading up on them, my sister has one and loves it, my kid's teacher told me about hers, etc." Most mattress sales people jump with glee inside when they hear this, but I cringed. It's a pride thing.