Eastern king beds are handmade to fit a mattress that is 6’6” long x 6’6” wide.
Because the mattress sits within the bed frame, it means our bed sizes are always bigger than the equivalent sized mattresses. The actual size is dependent on the bed design, so it’s always important to check the dimensions of the beds.
Measurements above are in MM’s.
The next size up from an eastern king, would be an emperor bed frame, which are 7’0″ wide and the next size down would be super king-size, which are 6’0″ wide.