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Is 306 square millimeters as big as a King Size Bed?

It's about one-fifteen-thousandth as big as a King Size Bed
The size of a King Size Bed is about 4,030,000 square millimeters.
(North American/Australian standard; length; mattress only)
A King-Size mattress measures 4,030,000 square millimeters in total area. Although most antique beds were smaller than modern beds, it was not uncommon for beds in the medieval Europe to reach 5,000,000 square millimeters for those in positions of wealth or power.
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