There can be a gentle slope, but it is best to have the same height.
If the bedroom floor is lower than the living room floor, the family fortune will be bumpy, which will be harmful to Feng Shui but not beneficial.
The living room belongs to the inner hall, and the outer hall is the open space in the courtyard in front of the gate of the house. Feng Shui requires that the outer hall should be lower than the inner hall, and the inner hall, that is, the floor of the living room should be lower than the floor of the bedroom. The floor of the bedroom is lower than the floor of the living room, which means that there is no distinction between priority and inferiority, causing guests to dominate the host, making it easy to be despised or bullied, resulting in low status and affecting the development of career and wealth.