<![CDATA[Nicotine exposure from smoking can interfere with sleep through central nervous system stimulation, heightened arousal, and disruption of circadian regulation. This study described sleep quality among adult active smokers in Denpasar City and assessed whether it differed according to selected respondent characteristics. A descriptive cross-sectional study involved 68 active smokers aged 26–45 years living or working in East Denpasar, recruited consecutively. Sleep quality was measured using the Indonesian Pittsburgh Sleep Quality Index (PSQI); scores of ≤5 indicated good sleep quality and scores >5 indicated poor sleep quality. Categorical data were summarized descriptively and associations were examined using Chi-square or an appropriate exact test. Poor sleep quality was identified in 43 participants (63.2%), whereas 25 (36.8%) had good sleep quality. Sleep quality was significantly associated with age (p<0.001), but not with sex (p=0.963), cigarette type (p=0.785), or occupation (p=0.327). These findings indicate that poor sleep quality was frequent among the adult smokers studied, and age was the only measured characteristic showing a statistically significant association.]]>
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