Balance: The Element is engineered to combine both softness and support. The top layer of memory foam comforms to your body to relieve pressure. AirScapeTM: A layer of AirScapeTM perforated breathable foam increases airflow and circulates air so you don't get too hot at night. The tiny holes move hot air and body heat away. Support: The durable base foam is engineered to prevent sinking and sagging while supporting your whole body. Certified by our Sleep Lab 100 night trial and free returns within 100 days of receipt of shipment on products sold by Casper