Gas Turbine System Technician (Electrical) 2nd Class Jannet Cain checks out a smart phone as part of a sleep study being conducted aboard the guided-missile destroyer USS Jason Dunham (DDG 109) by the Naval Postgraduate School. Jason Dunham is deployed to the U.S. 5th Fleet area of responsibility conducting maritime security operations, theater security cooperation efforts and support missions for Operation Enduring Freedom. (U.S. Navy photo by Mass Communication Specialist 2nd Class Deven B. King/Released)