Common sense says that it is good to have space below the bed.
So that one can easily clean below the bed.
Dear Paula, In my opinion, from a Feng Shui point of view the use of platform bed has more to do with "Commonsense Approach to Feng Shui". In fact, it is literally - Commonsense under Feng Shui:- 1. Is sleeping on a platform, bad under Feng Shui? In many parts of the world, many people do sleep either on the floor or on a platform. In particular, the Japanese, for example sleep on the floor which is quite similar to sleeping on a "platform" or flat-bed. Thus, generally there are no issues he