The Sun Lounges were a fleet of three streamlined sleeper-lounge cars built by Pullman-Standard for the Seaboard Air Line Railroad (SAL) in 1956. The cars featured a distinctive glazed roof area meant to capture the ambience of a dome car in a lower profile, as tunnels on the East Coast of the United States prevented the use of dome cars there. The Seaboard employed all three Sun Lounges on its flagship Silver Meteor between New York City and Miami, Florida. The cars later saw service with the Seaboard Coast Line Railroad (SCL) and Amtrak. Two of the three survive in private ownership.

The Silver Meteor is a long-distance passenger train operated by Amtrak between New York City and Miami, Florida. Introduced in 1939 as the first diesel-powered streamliner between New York and Florida, it was the flagship train of the Seaboard Air Line Railroad (SAL) and one of the flagship trains of its successor, the Seaboard Coast Line Railroad (SCL). The train was transferred to Amtrak when it took over intercity passenger rail service in 1971.