Adjusting to Mattress- Sagging in the Middle?
Most frequently what looks like a body indentation occurs when the mattress is on a split foundation. We call this the “W” effect. The mattress will take the shape of its support structure. When two foundations are placed together, a slight “W” may occur where the outer edges of the foundation are slightly raised. A poor foundation can also cause the appearance of an indentation. A box spring will likely cause the Tempur-Pedic® mattress to sag. If the mattress is supported by a Tempur-Pedic® foundation and is still sagging, the foundation may be damaged. To determine if the defect is in the mattress or in the support, you can place the mattress on the floor. The mattress should return to proper flatness and supportiveness when placed on the floor if the foundation is at fault.
