Patent ID: 8745784

Claim:
A mattress system comprising: a mattress enclosed by a mattress cover such that a void is created directly between the mattress and the mattress cover, the void forming a mattress air chamber; an airflow driving device in fluid communication with the mattress air chamber via an air chamber inlet and an air chamber outlet, the airflow driving device being operable to drive a substantially non-pressurized airflow through the mattress air chamber around the outside of the mattress from the air chamber inlet to the air chamber outlet such that the air flow contacts all exterior sides of the mattress and such that a weight of a user on the mattress system is wholly supported by the mattress rather than by either the mattress air chamber or the substantially non-pressurized airflow through the mattress air chamber; a heat adjustment unit for heating or cooling the airflow so as to control a temperature of the airflow within the mattress air chamber; and a return temperature sensor arranged to sense a temperature of a return airflow from the air chamber outlet to the heat adjustment unit.