Background: Inadequate sleep in hospitalized children can result in a range of negative outcomes. Prior sleep interventions for hospitalized children, pharmacological and non-pharmacological, remain uncertain in their effectiveness and feasibility.Objective: This study aims to evaluate the effectiveness of interventions in promoting sleep for hospitalized children.Methods: The study systematically reviewed studies with participants aged ۰-۱۸ years old (P), evaluating any intervention that aimed to promote sleep in hospitalized children (I) and included a control group (C). The study focused on the effect of interventions on sleep duration and quality (O), using studies published in the last decade (T). The study searched for studies in PubMed, Scopus, and Cochrane Library, including randomized controlled trials, quasi-experimental, and pilot studies, following PRISMA guidelines.Results: The results showed ۱۵ articles that met the inclusion criteria, which included interventions such as cognitive-behavioral therapy, physical exercise, storytelling, music therapy, environmental adjustments, and massage therapy. However, no studies were found on pharmacological methods to enhance sleep in hospitalized children or promote sleep using alternative interventions similar to those used in older adults.Conclusion: Future studies should address the gaps in the literature, encompassing all age ranges of children and providing updates on medication approaches.