COMPARATIVE STUDY OF SLEEP QUALITY AMONG UNDERGRADUATES WITH DIFFERENCE BODY MASS INDICIES.

ABSTRACT Sleep is a critical component of physical and mental health, particularly among young adults in academic settings. Poor sleep quality has been linked to various health risks, including obesity, impaired cognitive performance, and reduced academic productivity. While body mass index (BMI) is a known determinant of health, its influence on sleep quality among undergraduates Sleep is a critical component of physical and mental health, particularly among young adults in academic settings. Poor sleep quality has been linked to various health risks, including obesity, impaired cognitive performance, and reduced academic productivity. remains unclear, especially in developing contexts such as Nigeria. This study aimed to assess and compare sleep quality across different BMI categories among undergraduate students of Achievers University, Owo, Ondo State, Nigeria. A cross-sectional descriptive study was conducted among 100 undergraduates selected through stratified random sampling. Data were collected using a structured questionnaire incorporating the Pittsburgh Sleep Quality Index (PSQI) to assess sleep quality, alongside anthropometric measurements to determine BMI. Descriptive statistics summarized socio-demographic data, BMI classification, and sleep characteristics, while inferential statistics (Chi-square test) examined the association between BMI and sleep quality. The majority of respondents were females (56.0%), aged 21–23 years (42.0%), with a mean age of 22.71 ± 3.2 years. BMI distribution showed 62.0% had normal weight, 21.0% were overweight, 14.0% underweight, and 3.0% obese. Sleep analysis revealed a mean sleep duration of 6.2 ± 1.3 hours, with 29.0% reporting short sleep ( 5) was reported in 53.0% of students, with notable issues including delayed sleep onset (39.0%), frequent disturbances (57.0%), and daytime dysfunction (46.0%). While sleep quality declined with increasing BMI, the relationship was not statistically significant (χ² = 1.462, p = 0.691). Although poor sleep quality was more prevalent among overweight and obese students, BMI was not significantly associated with sleep outcomes. The findings suggest that factors beyond BMI, such as stress and lifestyle habits, may contribute more significantly to sleep problems among undergraduates. Keywords are Sleep Quality, Body Mass Index, Undergraduates, PSQI, Achievers University, Sleep Hygiene, BMI and Sleep.