What foundation does this 14.5-inch mattress need?

A firm, flat, fully supportive base, not a springy traditional box spring. A solid platform, a slatted frame with slat gaps under 3 inches, or a low-profile box foundation all suit it, and it is adjustable-base compatible. Solid, even support keeps the 2550-coil 5-zone system level so its alignment and edge stay true. Given the 14.5-inch height, a low-profile base keeps the total bed height comfortable to get in and out of, and protects the warranty.

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