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. Zoned SupportTM Pro: Seven zones of targeted support for healthy spinal alignment. Softer foam around the shoulders provide more relief to the upper body. Multiple ergonomic points provide pressure relief under shoulders, hips, waist and lower back. More support where you need it, with the plushness you crave.,AirScapeTM 2: Two layers of perforated breathable foam help reduce heat. Tiny holes move hot air and body heat away. Air channels allow heat to escape. Double the airflow to help you stay comfortably cool all night. Base: Resilient springs add a little lift, support and airflow to the mattress of your dreams. A firmer border provides edge support to help you get in and out of bed easily.