10-inch all-foam mattress with a medium-firm feel, made for sleepers who like the sink-in feel of memory foam with cooling gel. Plush CoolSync foam contours to the body and helps balance sleep temperature, while supportive transition and base foam create a stable foundation that stays flexible for adjustable bases. A soft-knit cover offers a comfortable sleep surface. The CertiPUR-US certified foam arrives compressed, rolled and boxed. Covered by a 10-year warranty.