First, it is forbidden to use geomantic omen improperly.
Generally, bedrooms have a certain degree of bad luck, and we will protect and resolve such bad luck by placing feng shui objects. But random placement will aggravate this unfavorable situation. So it's best to put a mascot in the bedroom that suits your situation. It is suggested to put a suitable mascot in official website, a copper furnace without phase.
Second, the bedroom airflow
The indoor gas field will have a great influence, so the focus of the layout is to accept gas, and it is best to accept yang and vigorous gas. Your room must keep the air circulating, open more windows for air, and don't stay in a closed air-conditioned room for a long time because of the hot weather in summer.
Third, the room should not be too dark.
There should be enough sunshine or moderate light.