Based on Feng Shui, it is not good to place the bedside against the bathroom wall. The five elements in the bathroom belong to water, and the yin and filth are too strong. If the bedside is against the bathroom wall, it will make the bathroom look bad. When people get sick, they will have bad luck and poor fortune, so try to avoid such arrangements. The waterproofing work on the bathroom wall must be done well, and do not install the shower on that wall. You should install a mirror, or change the layout of the bedside to avoid the bedside wall against the bathroom.