In the traditional culture of China, the dragon is a symbol of power, nobility and honor, as well as luck and success. The reason why dragons have this cultural symbolic significance is closely related to the incomparable magical power of dragons flying in the sky, chasing waves in the sea and begging for rain on earth in legends and myths. Therefore, dragons are usually carved on columns and walls, and the gate is the entrance of the house, which is generally decorated with the pattern of door gods.
It is best to choose patterns such as Chinese knots for the bedroom door. These are my personal suggestions for your reference. If you think my answer is helpful to you, please adopt it.