Diagnostic Considerations for Insomnias The Case of Comorbid Insomnia: More Nosological Issues Cognitive Behavioral Model of Insomnia and Anxiety Summary References Chapter 2 Considerations for Assessment Assessment of Sleep Actigraphic Measurement of Sleep Subjective Assessment of Sleep Clinical Interview Self-report Measurement Global Sleep Symptom Questionnaires Cognitive Insomnia Questionnaires Behavioral Insomnia Questionnaires Daytime Insomnia Symptom Questionnaires Assessment of Anxiety Structured Interviews for Anxiety Clinician-Administered Interviews for Anxiety Clinician-Administered Interviews for Specific Anxiety Disorders Self-Report Measures for Anxiety Symptoms General Measures for Self-Reported Anxiety Anxiety Disorder-Specific Self-Report Questionnaires Case Example 1: Generalized Anxiety Disorder and Insomnia Case Example 2: Sleep-Specific Worry References Chapter 3 Anxiety Disorders and Accompanying Insomnia Panic Disorder Generalized Anxiety Disorder Posttraumatic Stress Disorder: PTSD Obsessive–Compulsive Disorder Social Phobia Specific Phobias Summary References Chapter 4 Cognitive Behavior Therapy for Insomnia: Treatment Considerations What is Cognitive Behavior Therapy and Who Can Benefit from It?