What is Jathum, what are its symptoms and effect on a person, what forms does it take, and how can one get rid of it through Ruqyah?

Al-Jathum is the nightmare that befalls a sleeping person, and it is an evil spirit that is assumed to sleep on people while they are asleep. Its symptoms include terrifying dreams, a feeling of suffocation, and an inability to move or speak after waking up. It can be overcome by consulting doctors to determine if there are any psychological or physical illnesses and treating them, as well as through ruqyah (Islamic exorcism), and consistently reciting the adhkar (remembrances) of sleep, morning, and evening.