Bedroom feng shui bedside orientation is exquisite, where is the most prosperous?

The four pillars are XiShen with wood, so you should sleep with your head facing east and your feet facing west.

The four pillars regard fire as XiShen, so you should sleep with your head facing south and your feet facing north.

The four pillars are XiShen, so you should sleep with your head facing south and your feet facing north.

The four pillars are XiShen with gold, so you should sleep with your head facing west and your feet facing east.

The four pillars take water as XiShen, so you should sleep with your head facing north and your feet facing south.