This medium-firm hybrid mattress balances soft cushioning and reliable support. Built with SmartS Coil® individual pocket coils, it contours to your body, aligns your spine and relieves pressure on shoulders, waist and hips for side, back and stomach sleepers. Breathable NanoGEL™ ventilated memory foam boosts airflow to pull away body heat and keep you cool all night. Isolated coils cut motion transfer so your partner’s movements won’t wake you. Reinforced edges prevent sagging and expand usable sleep space. OEKO-TEX certified knit cover and CertiPUR-US certified foams offer skin-friendly, quiet and non-toxic rest.