a bed on a train is called a "berth"
You can buy a Little Tykes train bed at ToysRUs. You can also buy the products at Amazon. Another option is to visit a website called LittleTikes that also sells this item.
A single bed (often called a twin in the United States and is different than a guest bed) can be purchased from stores such as IKEA, Sleep Train, Costco, Sears, and Mattress Discounters.
Sleeping berth.
A bed on top of a bed is called a bunk bed
a small bed is called a toddler bed.
Why are you called you? Same answer because it is
A Berth
its called a bunk bed
Its called quads
A group of clams is called a "bed."
A cot or a single bed, sometimes called a twin bed.
the end of the bed