The Fisher and Paykel Eson™ Nasal CPAP Mask has been developed to provide the customer with a perfect fit like no other Nasal CPAP Mask available. The Eson™ CPAP Mask Cushion provides the newest RollFit™ technology designed specifically with the patient in mind. RollFit™ Technology, invented by Fisher and Paykel, gives the Mask Cushion the flexibility to roll back and forth on the bridge of the nose. This allows the cushion to automatically seal to a patients face based upon the facial structure and tightness of the headgear straps. Also the Eson™ CPAP Mask Cushion RollFit™ Technology assists to reduce the pressure on the bridge of the nose. This feature is also perfect for any CPAP user that has experienced irritation or soreness on the nasal bridge from use of their current CPAP nasal mask. Having the ability to roll back and forth maximizes the comfort while keeping a perfect mask seal during sleep apnea treatment.