General Note: Please allow 24 to 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.Care Instructions: DO NOT REMOVE OR WASH . Spot Clean only. To spot clean, Vacuum your mattress, sprinkle some baking soda on it. Use a scrub brush to gently rub the powder into the mattress and leave it for 10 minutes or so. Vacuum the excess powder. Do not wash. Do not use bleach. Do not machine dry.Do not iron.Do not dry cleanBalance: The Element is engineered to combine both softness and support. The top layer of memory foam conforms 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 Lab100 night trial and free returns within 100 days of receipt of shipment on products sold by CasperTwo layers of breathable polyurethane foamInside the Element: AirScape increases airflow to help keep you cool, Durable base foam offers long-lasting support.