Mattresses are generally designed and build with standard dimensions. However, the standard mattress design varies to chose from each part of the world. There is a full collection of Standard Mattress sizes from the US, Europe, Africa, Australia, and Asia. That seems you can get any mattress size that you like and it might be a typical somewhere in this world.

As for Malaysia, a standard Single Size Mattress is roughly 190 centimeters wide by 90 centimeters long, and a Queen Mattress is almost 190 centimeters wide by 150 centimeters long, and King Size Mattress is approximately 190 centimeters wide by 180 centimeters long.

Most of the Malaysian Bed Frames that design for you are in various sizes. Thus getting mattresses and bedsheets to match your bed frames might be extra difficult. The below table is the standard mattress sizes available in Malaysia.