Experience restorative sleep with the Casper Original Foam Mattress. Zoned Support provides targeted comfort- soft foam around shoulders and firmer foam under hips, waist, and lower back align your spine and relieve pressure. The medium-firm feel supports side, back, and stomach sleepers, delivering balanced pressure relief. Breathable open-cell memory foam promotes airflow to keep you cool all night. Plush yet resilient foam conforms to your body while the durable base prevents sinking and sagging and offers consistent edge support for stability. The stretch-knit mattress cover ensures you enjoy the full benefits of the layers below. All foams are CertiPUR-US certified, made without ozone-depleting chemicals, and meet strict indoor air quality standards.