RESULTS: Baseline mean values were: age 61.3 ± 11.2, 56% female, BMI 24.1 ± 4.5 kg/m2, FEV 1.59 ± 1.4 litres. 68.8% had poor sleep quality (PSQI 8.1 ± 6). Quality of sleep was significantly correlated with quality of life (p<0.001). Significant differences were found between the genders for total score and each of three subscores of SGRQ suggesting poorer quality of life in females. Stepwise multiple regression analysis showed that severity of COPD, female gender and sleep quality accounted for the poor quality of life significantly (r2 = 0.11, 0.2, and 0.16, respectively).