PASSENGER TRAIN EQUIPMENT - All Aboard: The Complete North American Train Travel Guide - page 153

rooms will sleep four—two adults and two kids—and Amtrak
often (but not always) prices these rooms below the cost of the
bedrooms, which will only accommodate two adults comfort-
ably. Remember too that all four of you will get complimentary
meals in the dining car when you travel in the family bedroom.
However, there is only one of these rooms in each Superliner—
one more reason to make your reservations as far in advance as
possible.
There is also one “special bedroom” in each of these sleeping
cars. This is really just a politically correct term meaning that the
room is designed for a passenger with disabilities plus a compan-
ion. The room is well designed and handles a wheelchair quite
neatly. There are two beds, a toilet, a washbasin and mirror, a
little closet, and—ta-da!—a storage rack for two suitcases. Like
the family bedroom, this room runs the entire width of the car,
and there is only one in each Superliner. These rooms may be sold
to nondisabled passengers within 72 hours of departure if the rest
of the accommodations are sold out.
All Superliner rooms include a small built-in, fold-out table
for playing cards or games. There is also a temperature control,
and you can adjust the flow of air through a vent in the ceiling.
(Note: It's common for these vents not to close all the way, so be
prepared to deal with chilly conditions at night.)
There is another quirky little thing about Superliner sleep-
ers. In some of the cars (but not all), you summon the car atten-
dant by pulling, not pushing, the call button. When the button is
pulled, a bell rings and a small light goes on outside your door.
Don't push the button back in until the attendant arrives. If you
do, the light will go out and he or she won't know which pas-
senger rang.