Can I claim for compensation if someone suddenly comes in while staying in a hotel?

You can ask the hotel to compensate for the loss.

Legal basis:

People's Republic of China (PRC) Civil Code

Article 120 Where the civil rights and interests are infringed, the infringed has the right to request the infringer to bear the tort liability.

Article 167 Where an infringement endangers the personal and property safety of others, the infringed party has the right to demand the infringer to bear the tort liability of stopping the infringement, removing the obstruction and eliminating the danger.