Background: The quality of sleep and sleep difficulties are highly frequent in cancer patients, whether or not they are linked to various medical illnesses. Cancer diagnosis and treatment can cause sleep disruptions or aggravate pre-existing sleep issues. More than half of cancer patients experience sleep disturbances, according to studies using quantitative and qualitative sleep parameters. The aim of the study was to evaluate the quality of sleep among cancer survivors. Methods and materials: The keywords “sleep,” “sleep quality,” “cancer patients,” “cancer survivors,” and “quality of sleep” were used to search databases (PubMed, Google Scholar, Academia, Open Access, Directory of Open Access Journals), which resulted in 110 research studies. The studies were sorted based on the inclusion and exclusion criteria, and consequently, 15 articles were chosen for the main analysis. Results: It was found that most of the studies used a prospective and survey research design. The mean age of the samples was in the range of 25–60. The majority of the studies used the Pittsburgh Sleep Quality Index scale (PSQI). All studies arrive at the same conclusion that quality of sleep is deprived in cancer survivors.
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