<Dd> 70 in × 82 in (178 cm × 208 cm) </Dd> <P> Most modern beds / mattresses available in the UK and Ireland are sold using metric dimensions, as required by law . The names of standard mattress sizes were, however, originally attributed to specific imperial dimensions which remain in common use as a point of reference . </P> <Table> <Tr> <Th> Size </Th> <Th> </Th> <Th> Notes </Th> </Tr> <Tr> <Td> Small Single </Td> <Td> 75 cm × 190 cm (30 in × 75 in) </Td> <Td> Common UK size for hospitality (zip & link) twin beds as beds can be combined to make a short king bed . Equivalent to previous 2'6" x 6'3" </Td> </Tr> <Tr> <Td> Single </Td> <Td> 90 cm × 190 cm (35 in × 75 in) </Td> <Td> Also a standard hospitality sized twin bed in Ireland, two mattresses can be zip linked to make a short Superking bed . Equivalent to previous 3' x 6'3" </Td> </Tr> <Tr> <Td> European single </Td> <Td> 90 cm × 200 cm (35 in × 79 in) </Td> <Td> </Td> </Tr> <Tr> <Td> Small Double </Td> <Td> 120 cm × 190 cm (47 in × 75 in) </Td> <Td> Equivalent to previous 4' x 6'3" </Td> </Tr> <Tr> <Td> Double </Td> <Td> 135 cm × 190 cm (53 in × 75 in) </Td> <Td> Equivalent to previous 4'6" x 6'3" </Td> </Tr> <Tr> <Td> European Double </Td> <Td> 140 cm × 200 cm (55 in × 79 in) </Td> <Td> </Td> </Tr> <Tr> <Td> King </Td> <Td> 150 cm × 200 cm (59 in × 79 in) </Td> <Td> Equivalent to previous 5' x 6'6" </Td> </Tr> <Tr> <Td> European King </Td> <Td> 160 cm × 200 cm (63 in × 79 in) </Td> <Td> </Td> </Tr> <Tr> <Td> Superking </Td> <Td> 180 cm × 200 cm (71 in × 79 in) </Td> <Td> Equivalent to previous 6' x 6'6" </Td> </Tr> <Tr> <Td> Emperor </Td> <Td> 200 cm × 202 cm (79 in × 80 in) </Td> <Td> Equivalent to previous 6'6 x 6'8" </Td> </Tr> <Tr> <Td> Large Emperor </Td> <Td> 215 cm × 217 cm (85 in × 85 in) </Td> <Td> Equivalent to previous 7' x 7' </Td> </Tr> </Table> <Tr> <Th> Size </Th> <Th> </Th> <Th> Notes </Th> </Tr>

What size is a european king size mattress