as malaysia is a islamic state, is it illegal or do the country have strict regulations about tourist who are of mixed sex staying in a single room? be it double or twin beds????
Just to clear the air, Malaysia is NOT an islamic state. It is a secular state (according to a supreme court judge who passed a verdict on a case back in the 80's) just like Singapore. One difference is that in the constitution, an article says that the official religion is Islam, and at the same time guarantees the freedom of religion for its citizens.
Quoting Constitution of Malaysia
(1) Islam is the religion of the Federation; but other religions may be practised in peace and harmony in any part of the Federation.
So with that article, there are islamic influences in the things that are done here.
We do have the islamic laws as well. And as mowgliboy pointed out, the laws applies only to the muslims and could not be used against non-muslims. The recent unfortunate incident involving an old couple from the US is isolated, and the authority's overzealous officers had acted against the law. Don't worry too much about sharing a room with anybody you want. Just think of Malaysia as another Singapore, but with islamic influence in the administration.
[ Edit: edited by Hien ]