Posttraumatic stress disorder (PTSD) is a psychiatric disorder that develops after a traumatic event, characterized by specific symptoms such as re-experiencing, avoidance, blunting, hyperarousal symptoms, and non-specific symptoms such as nightmares, sleep disturbances, and impaired functioning. Sleep disorders are a very significant problem in PTSD patients and are generally resistant to treatment. Impaired sleep quality has been shown to be associated with increased PTSD symptom severity and suicidal ideation. Although medications and psychotherapy are at the top of the list for the treatment of PTSD, repetitive Transcranial magnetic stimulation (rTMS) has recently emerged as an important treatment option in treatment-resistant PTSD cases. In this article, treatment of insomnia with rTMS in a patient with PTSD is described.