<p>Sleep is a universal and biological aspect that allows the body to regain the ability to function properly, be productive and also rejuvenate. The objective of this study was to establish the prevalence and correlates of self-reported sleep difficulty among older persons in the urban slums of Kampala in Uganda. This study utilized primary data collected in October 2022, in a project entitled “access to safe water and health services among older persons in the slum of Kampala”. We interviewed 593 men and women aged 60 years and above. An ordered logistic regression model was fitted to establish the association between sleep difficulty and selected explanatory variables. The results show that nearly 43% of the respondents had sleep difficulty. Self-reported sleep difficulty was high among older persons who; were aged 80 years and older (OR = 1.806, 95% CI = 1.052–3.098), were living alone (OR = 2.287, 95% CI = 1.557–3.358). However, we found that older persons who had obtained secondary level of education and above were less likely to report sleep difficulty (OR = 0.553, 95% CI = 0.322–0.952). Our study reveals that a significant percentage of older old persons experience sleep difficulty in urban slums of Kampala. There is a need for policy and programming strategies to improve healthy living among older persons. Policies tailored towards promoting later life physical activity and active ageing should be emphasized. Older persons should be encouraged to reduce sedentary life styles that is associated with health complications.</p>