Just stopped by the AMTRAK station today and picked up some materials I needed or thought might come in handy. One was the Coast Starlight travel brochure:

Standard Bedroom - Designed for one or two passengers, with two comfortable reclining seats on either side of a big picture window. At night, the seats convert to a bed, and your attendant pulls an upper berth down from the ceiling. Located on both upper and lower levels. Restrooms and shower are nearby.

Deluxe Bedroom - The Deluxe Bedroom is the ultimate in Sleeping Car travel. These upper-level private rooms offer a sofa and armchair, and convert to a wide lower berth and comfortable upper berth. They also include a private sink and vanity, and a fully enclosed private shower and toilet. Certain adjoining Deluxe Bedrooms can be combined into a Deluxe Suite.

Family Bedroom - The Family Bedroom occupies the entire width of the lower level at one end of the car, with private windows on both sides. At night, your attendant converts the long sofa and two seats to a wide lower berth and adult-sized upper berth, plus upper and lower child-size berths. Restrooms and a shower are a few steps away.

Accessible Bedroom - Designed for passengers with mobility impairments, the accessible bedroom has ample space for a wheelchair. Accessible Bedrooms occupy the entire width of the lower level at one end of the car with two facing, reclining seats and upper and lower berths. The sink, vanity and toilet are accessible by wheelchair, and are separated from the room by a privacy curtain. Food and beverage service is available to the room.