Will putting curtains on the upper berth affect Feng Shui? It looks like I'm sleeping under a coffin.

There is nothing serious in the dormitory. If you sleep like a coffin, then the people in the upper berth are sleeping in the coffin, right? No, the lighting in the dormitory will affect sleep. Some people are sensitive to lighting, others are slow, and the linear distance between the upper berth and the lower berth is relatively close, so many dormitories hang curtains.

Worry too much, good luck!