The story of where the bed goes
Every building tradition has rules about bed placement, and they usually turn out to be about the same practical problems. Vastu Shastra places the head of the bed to the south and advises against sleeping with the feet pointed directly at the door. Feng Shui arrives at nearly the same arrangement from different reasoning, calling it the commanding position: you see the door without being in line with it.
Strip away the metaphysics and a common core remains. A bed against a solid wall with a clear view of the entrance feels settled, because the sleeper is not exposed from behind and is not startled by anyone entering. A bed directly under a window loses that solid backing and gains a draught. A bed in the path between the door and the bathroom sits in a traffic lane all night.
Our artisans have built beds for households that follow vastu strictly and for households that do not, and the practical consequence is the same either way: the headboard wall is decided first, and the bed is designed to that wall. This is why we ask for room dimensions and door and window positions before we begin, rather than after.