A mattress name is a local label
“Queen” and “King” sound like universal measurements, but they are product categories defined by regional convention, not one worldwide size standard. A manufacturer making a queen mattress for one market follows the dimensions customers there expect; a company using the same label elsewhere may build a mattress that is several inches wider or longer.
That difference reflects how each market organizes its bedding. Retailers stock familiar local sizes, manufacturers build mattresses to match, and sheet makers cut fabric for those mattresses. The same label can therefore travel across a border more easily than the measurements behind it.
Why the fitted sheet misses
A fitted sheet must match more than a mattress’s length and width. Its corners need enough fabric to wrap around the mattress, and its elastic edge must accommodate the mattress’s depth. Even a modest mismatch can pull a corner loose or leave the sheet stretched tight; a difference in depth can cause trouble even when the top surface seems close.
Labels alone are unreliable when buying bedding for a mattress made in another region. Check the mattress’s actual dimensions—and the sheet’s stated fit range, including depth—before purchasing. A familiar name on the package may not mean the elastic corners will land where you expect.
