Question about mattresses. Does anyone have a tempur-pedic or has anyone slept on one? Is Tempur-Pedic like Bose: a marketing company that happens to sell a product? I only know one person who has slept on one and he was extremely pleased with it, but I'm afraid it might be a sort of placebo effect. They really aren't significantly more expensive than other nice mattresses, but I don't think there's anywhere nearby to check one out or anything. So, any opinions or experiences are welcome. Thanks.