Hospital Corpsman 2nd Class Caitlyn McClure, attached to the aircraft carrier USS George H.W. Bush (CVN 77), teaches a sleep hygiene class aboard the Arleigh Burke-class guided-missile destroyer USS Truxtun (DDG 103). Truxtun is deployed as part of the George H.W. Bush Carrier Strike Group supporting maritime security operations, strike operations in Iraq and Syria as directed, and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Scott Barnes/Released)