Background:  Insomnia disorder is a public health concern and is often considered a normal aging phenomenon. Aim of the study: evaluating the effect of sleeping instruction on reducing insomnia among the elderly. Design: A quasi-experimental design. Settings: conducted at sleep disturbance outpatient clinic in Aswan university hospital &geriatric social club in Aswan city. Sample: A purposive sample was used to conduct this study, the sample size was 60, and they were chosen according to inclusion criteria. Tools: Two tools were used in the present study; a structured interview questionnaire & Athens insomnia scale Results: The designed sleep hygiene program had statistically significant improvement in elderly knowledge and practices. Indeed, there was no statistically significant correlation between elderly' sleep hygiene and Athens insomnia scale as sleep latency, sleep duration, sleep efficiency, sleep disturbances, and day time dysfunction at the pre and post-intervention phases at P < 0.05.Conclusion: The designed sleep hygiene program don in this study had statistically significant improvement in elderly knowledge and practices and reducing insomnia. Recommendations: Design an awareness Program regarding insomnia among the elderly to enhance sleep by emphasizing the importance of sleep hygiene practice.