Incredible sleep is a luxury you can afford with this 12" hybrid mattress. Three layers of contouring memory foam encase a series of reinforced, individually, fabric-wrapped pocket coils. The springy comfort of the 8.5" high-grade steel pocket springs provide support and stability while the three separate layers of contouring memory foam reduce motion transfer and diminish stress on your pressure points. Cooler than solid foam mattresses by design, the open-construction pocket coils provide breathability. The mesh border design further promotes airflow and allows heat dissipation. The edge-to-edge spring structure ensures proper tension and firm support from every direction allowing you to sleep or sit at the farthest edge with balance and stability. Designed with your comfort and safety in mind, rest well knowing the low VOC foam is CertiPUR-US certified, which means it is made without formaldehyde, ozone depleters, dangerous flame retardant chemicals, mercury, lead, and other heavy metals. A soft and supple quilted, knitted fabric cover allows breathability and an extra layer of safety through independently tested fireproof certifications. In accordance with safety standards provided by the United States Consumer Product Safety Commission, this mattress is proud.