Bedroom is where we spent most of our resting time. Thus the Feng Shui for bedrooms is pretty important yet there are too many taboos for the bedroom Feng shui.
Ranging from cross beams above the bed to sleeping with the head backing the windows or even head towards the wall with a stove behind which are all considered as bad Feng Shui bedroom layout.
These are based on what is known as Internal Feng Shui. They used external land form methods and improvised it to layout the internal of a house and call it house Feng shui. Thus it is then migrated this technique for used for the bedroom. However this not how one would practice it in real Feng Shui methods because external land form deals with mountains, hills, lakes and rivers.
Because bedroom is used primarily for husband and wife although nowadays is it used for many different type of relationships, the old days one of its purpose is meant to promote harmony among husband and wife and thus in modern application it is also used as Feng shui for love.