1。 The bed can't face the door (otherwise you will get into a lawsuit or get sick)
2。 The bedside should not be under the beam (that is, the wall with doors) (this is related to insomnia)
3。 Don't use the toilet behind the wall near the bed.
4。 The bed must be against the wall. You can't be alone.
5。 Don't be too close to the window, there is a thief wind.