The support for your mattress should be flat, sturdy, as well as smooth. It should be supported similarly, like the support of a platform bed or a slatted frame provides to ensure that your body gets the correct support while lying on your mattress. Tempur-Pedic has created the TEMPUR-Flat Foundation to provide you with a solid base for your mattress that will last for many years. The charcoal upholstery fabric coordinates with the new line of Tempur-Pedic mattresses. The engineering is such, that regardless of the profile height you choose, your mattress will be well supported, flat and solid, for the ultimate results for both you and your mattress.