best in the world

I really don't understand why others have had such problems. This mattress will never need to be replaced. Of course it is an extra firm. There is ABSOLUTELY no evidence of usage in the 10 years we've used it for the master bdrm. I did buy it knowing it would last forever due to being individually hand tied and extra firm. I bought a plush topping which we've also used for 10 yrs. It does show some indentation where we both sleep, but not enough to have replaced it yet. I would never buy another mattress than Chatham and Wells. The sales person in San Francisco showed us what it looked like on the inside. A work of beauty. One thing I DO KNOW for a fqact is that one should never never buy tempurpedic or anything like it. Form anything will not hold up and you'll be replacing it in very short order.