AHR is a seat within a seat, featuring a unique adjustable head restraint that has been developed to move with the growth of the child and provide maximum protection for growing toddlers. The deep side wings on the Active Head Restraint (AHR) have been designed to support the head of a sleeping child as well as containing and protecting the head in a side impact collision. Additionally the AHR includes EPS layer to absorb energy in a crash to reduce the potential injury.