These appear to be the sizes of beds available in NZ.
New Zealand Mattress Sizes
(width cm x length cm)
Long Single _______ 90 x 203
King Single ______ 105 x 203
Long Double ______ 135 x 203
Queen ____________ 150 x 203
King _____________ 165 x 203
Super King _______ 180 x 203
Californian King _ 200 x 203
Single ____________ 90 x 190
Three Quarter ____ 120 x 190
Double ___________ 135 x 190
For the most common bed size (NZ Queen) it is very similar in size to the US Queen which is 152 x 203 cm (which is the same as the UK King)
Ian