Which Direction Should Your Head Face While Sleeping?

We are in the midst of moving to a new apartment and currently in a dilemma on where the bed should be. I have always thought that our bed (i.e. head direction) should follow one of our auspicious directions based on our Kua number but apparently not! I have been told recently that our bed should instead face east or south. The reason for this is due to the earth's magnetic force. A scientific approach to choosing sleeping direction!

Therefore, I have decided to do a search on the internet to get a better understanding. Please click the link below for more information=> http://answers.yahoo.com/question/;_ylc=X3oDMTBxcDMxYWk4BF9TAwRzZWMDbWFpbHRvBHNsawNzdWJqZWN0;_ylv=3?qid=20071013133129AAzsdSm