Willis Knighton System Sleep Disorders Center The Willis-Knighton Health Sleep Disorders Center is seeking a Polysomnographic Technician. The applicant must have appropriate technical credentialing to include any of the following: CPSGT, RPSGT, CRT-SDS or RRT-SDS. Licensure by the Louisiana State Board of Medical Examiners is required....Technologist, Sleep, Technician, Healthcare