Firm feel. PrecisionFit coils flex and adapt to your body's natural alignment. MaxSupport technology provides ultimate all-night targeted support where it's needed. Encased coils offer robust support by reducing motion transfer and partner disturbance. SealyChill technology helps keep you cool and comfortable all night long. ComfortSense gel memory foam evenly distributes weight across the mattress for pressure relief. DuraFlex coil edge provides a solid seating surface that's more durable and flexible when paired with an adjustable base. Hybrid technology combines encased coils with Sealy memory foam for pressure-relieving comfort.