Vasthu Shastra Bedroom :

It is nearly impossible for any construction complain with all the principles laid down in the vastu science. This being the case endeavor should always be to adhere to as many principles as his convenient.

In any house, the residents spend maximum time in the bedroom. This being the case it is but natural to consider alignment and placement of the bedroom in as best possible a manner as is practicable. For the least but one can do is atleast minimize to the extent possible adverse effects of non compliance of vastu principles.

It is best accomplished to consult a competent vastu scholar even prior to planning the construction to avoid unnecessary expenditure at later date. For one can understand vastu principles easier than astrological calculations. However compliance to vastu principles is more expensive and so people avoid and succumb to the adverse effects albeit willingly.(SubhaVaastu.com) It is for this reason that one can take precautions before hand. This is equivalent to taking precautions in health care rather than spending in hospitalization.

Knowing the residential constructions as stated above when it is near impossible to comply with all the requirements of vastu, the next best option is atleast comply with the vastu principles of that part of the house in which one spent most time. This naturally is the bedroom.