Results: Mean PSQI score of women with normal PSG evaluation was 12.00±3.16, while it was 11.00±2.32 in women with abnormal PSG evaluation (p=0.466); 59.7% (n=40) of women had poor sleep quality. Among these, 11 (64.7%) had abnormal results in the PSG evaluation and were diagnosed with obstructive sleep apnea syndrome (OSAS); 54.5% had mild OSAS, 27.3% had moderate, and 18.2% had severe OSAS. PSQI and PSG evaluations would give a chance to demonstrate sleep problems and shed a light on treatment options according to the underlying causes of sleep disturbances in menopause. (J Turk Ger Gynecol Assoc 2015; 16: 149-52) Keywords: Menopause, sleep disturbance, Pittsburg Sleep Quality Index, polysomnography Received: 27 April, 2015 Accepted: 07 June, 2015 Available Online Date: 14 July, 2015 Evaluation Abstract and at our city's State Hospital were enrolled in the study between January 2014 and November 2014. Menopause, as a retrospective diagnosis, was determined as the perpetual cessation of menstruation with 12 months of amenorrhea because of the loss of ovarian hormonal activity without other underlying reasons (5). Before enrolment, the content of the study was explained to the patients and written approvals with an informed consent were gathered from them. The local ethical committee of the Düzce University School of Medicine approved the study. Sociodemographic characteristics of the participants, including the characteristics of menopause, were recorded via face-toface interview with an open questionnaire. Pittsburgh Sleep Quality Index (PSQI) was used to assess the subjective sleep quality in all patients. This questionnaire is self-rated and evaluates sleep quality and disturbances over a 1-month period. It has 19 individual items with seven "component" scores: subjective dysfunction. The scores of each item of the index vary between 0 and 3. Total score of these seven components makes one score of 0-21. A total score >5 indicates insufficient sleep quality. PSQI of ≤5 indicates good sleepers, while PSQI of >5 corresponds with poor sleepers (6). Patients with a PSQI of >5 and who accepted this noninvasive procedure were referred to the sleep laboratory of our university and underwent an overnight PSG evaluation (Alice 5 Sleep System, Philips, Respironics, Pennsylvania, United States) to confirm the existence of sleep disturbance objectively. PSG consists of a simultaneous recording of multiple physiological parameters, including electroencephalogram (EEG), electrooculogram (EOG), electromyogram (EMG), electrocardiogram (ECG), oral and nasal air flow cannula, thorax and abdomen movements, body position, snoring, and pulse oxymeter. At least 6 hours overnight PSG records were obtained for each patient. The all-night PSG sleep records were manually scored in a computer program. Apnea was defined as the complete lack of or an airflow reduction of >90% through the mouth and nose. Hypopnea scoring criteria defined as an airflow reduction of at least ≥30% for 10 seconds associated with oxygen desaturatio...