Located in Tsutsugaoka, Kitakami City, Iwate Prefecture, Kasai Sleep Respiratory Clinic is an internal medicine clinic specializing in respiratory disorders. Operated by Medical Corporation Hokuryokai, the clinic focuses on the diagnosis and treatment of sleep apnea syndrome (SAS) and respiratory diseases. One of the clinic's notable features is the availability of four examination beds within the facility, allowing for polysomnography (PSG) examinations through overnight hospitalization. This examination, which records and analyzes sleep status in detail, is an essential method for definitive diagnosis of sleep disorders, and the clinic is fully equipped with specialized facilities. Additionally, CT imaging equipment is installed, enabling the detection of subtle abnormalities that are difficult to identify with standard X-ray examinations. A system is in place to immediately view diagnostic results on computers within the examination room, ensuring prompt and detailed explanations. Furthermore, the clinic actively collaborates with local medical institutions, providing specialized diagnoses and treatment plans in cooperation with other departments and hospitals. The clinic also demonstrates attention to creating a relaxing environment, with amenities including waterbed massage equipment. English-speaking services are available, and parking and barrier-free facilities are well-equipped, making it an accessible environment for patients from diverse backgrounds. Closed days include Sundays, holidays, the Obon period, and year-end and New Year holidays.