The research aims at establishing the relationship between sleeping and BMI of young adults. In the recent years, obesity has become one of the notable issues with a growth rate. Different factors in relation to obesity are being studied to keep the body weight under control. The current research contributes to the healthcare industry and the young adults’ populations with its aim of understanding the influence of sleep on the BMI. Review of the past literatures has enabled the current research to acknowledge three significant aspects of sleep; timing, duration, and architect. The research carried on a quantitative analysis over the data collected using the questionnaire method, from a sample size of 589 participants. As per the findings of the analysis, the BMI of young adults is inversely associated with the sleep timing and sleep duration, while a positive association is recognized with respect to sleep architecture. Keywords: BMI, sleep, sleep timing, sleep duration, sleep architecture, BMI of young adults