Sleep deprivation

Background: Sleep is a fundamental physiological process necessary for optimal cognitive function, emotional stability, physical health, and academic performance. Medical students are particularly vulnerable to unhealthy sleep patterns due to demanding academic activities, prolonged study hours, clinical responsibilities, and psychosocial stressors. Poor sleep among medical students has been associated with impaired concentration, daytime dysfunction, reduced academic productivity, and mental health problems. This study assessed the sleep patterns of medical students of the University of Benin and evaluated associated factors, sleep-related behaviours, and awareness of behaviours linked to unhealthy sleep patterns. Methodology: A descriptive cross-sectional study was conducted among 427 undergraduate medical students from 200 to 600 level at the University of Benin, Benin City, Edo State, Nigeria. A stratified random sampling technique was used to select respondents. Data were collected using a structured self-administered questionnaire comprising standardized instruments including the Pittsburgh Sleep Quality Index (PSQI), Sleep Hygiene Index (SHI), and Sleep Beliefs Scale (SBS). Data were analysed using IBM SPSS version 27. Descriptive statistics were summarized using frequencies, percentages, means, and standard deviations, while Chi-square tests were used to determine associations between variables at a significance level of p < 0.05. Results: The mean age of respondents was 22.56 ± 3.02 years, and 55.3% were male. The mean sleep duration was 5.5 ± 1.2 hours per night. Overall, 187 (43.8%) respondents had disturbed sleep patterns, while 240 (56.2%) had normal sleep patterns. The most commonly reported sleep disturbances were waking up in the middle of the night or early morning and nocturnal awakening to use the bathroom. Place of residence was significantly associated with sleep patterns (p = 0.043), with on-campus students demonstrating better sleep patterns than off- campus students. Sleep behaviours (p = 0.002) and awareness of sleep-related behaviours (p = 0.007) were also significantly associated with sleep patterns. Although 55.0% of respondents demonstrated good sleep behaviours, only 15.9% had good awareness of behaviours associated with healthy sleep. Conclusion: A considerable proportion of medical students at the University of Benin experienced disturbed sleep patterns and inadequate sleep duration. Poor sleep behaviours and low awareness of healthy sleep practices were significantly associated with disturbed sleep. There is a need for targeted interventions, including sleep hygiene education, mental health support, and institutional policies aimed at promoting healthy sleep practices and improving the well-being of medical students. Keywords: Sleep patterns, medical students, sleep quality, sleep hygiene, awareness, University of Benin.