Amtrak offers sleeping cars on most of its overnight trains , using modern cars of the private - room type exclusively .
In the United States today , all regularly - scheduled sleeping car services are operated by Amtrak .
Amtrak offers sleeping cars on most of Amtrak 's overnight trains , using modern cars of the private - room type exclusively .
In the United States today , all regularly - scheduled sleeping car services are operated by Amtrak .