Int J Cur Res Rev | Vol 13 • Issue 09 • May 2021 95 Association between Quality of Sleep and Body Mass Index: A Brief Narrative Review Darshana Nariya 1 , Subhash Khatri 2 1 PhD Scholar, Nootan College of Physiotherapy, Gujarat, India; 2 Principal Incharge, Nootan College of Physiotherapy, Gujarat, India. Corresponding Author: Dr. Darshana Nariya, 168, Bhaktinagar-1, Varachcha, A.K. Road, Surat- 395008, Gujarat, India. Mobile: 7984809693; Email id: darshananariya072@gmail.com ISSN: 2231-2196 (Print) ISSN: 0975-5241 (Online) Received: 04.09.2020 Revised: 12.11.2021 Accepted: 02.01.2021 Published: 07.05.2021 INTRODUCTION Sleep is defined simply as an absence of wakefulness. It is an active, regulated and metabolically different state needed for health and wellbeing. 1,2 Normally, adults sleep about 7 to 9 hours per night. According to National Sleep Foundation, key determinants of good quality sleep are, 3 • Sleeping more time while in bed (at least 85 %t of the total time) • Falling asleep in 30 minutes or less • Waking up no more than once per night; and • Being awake for 20 minutes or less after initially fall- ing asleep. The Pittsburgh Sleep Quality Index (PSQI) is a self-rated questionnaire that assesses sleep quality and disturbances. The score ranges from 0-21. A score of more than 5 indicates poor sleep quality. It has a reliability of 0.85 and a validity of 0.81. 4,5 “Obesity is defined as anomalous or extreme fat accumula- tion that presents a health risk. A measure of obesity is the body mass index (BMI), a person’s weight (in kilograms) divided by the square of his or her height (in meters)”. A person with a BMI of thirty or additional is mostly thought of as obese. 6 Prevelence of obesity in India is varies from 11.8% to 31.3%. In Gujarat prevalence of obesity are 19.7% in males and 23.7% in females. 7 So this review aims to explore the link between the quality of sleep and BMI. MATERIALS AND METHODS A computer-based literature search was done using the PUB- MED, PUBMED CENTRAL, and GOOGLE SCHOLAR. Relevant articles with a full text published in English be- tween the years 2011 to 2020 were screened and included. Editorials, Commentaries, Discussion papers, Conference abstracts, Reviews, and Duplicates were excluded. We in- cluded only cross-sectional studies with full-text articles. After the screening through articles, 7 relevant articles were included in the review. Figure 1 shows the searching strat- egy for this review. Characteristic of the reviewed article was summarized in table 1. All studies have examined the association between quality of sleep and BMI. Out of 7 cross-sectional studies, 6 studies demonstrated that higher BMI is associated with poor quality of sleep Review Article International Journal of Current Research and Review DOI: http://dx.doi.org/10.31782/IJCRR.2021.13902 IJCRR Section: Healthcare ISI Impact Factor (2019-20): 1.628 IC Value (2019): 90.81 SJIF (2020) = 7.893 Copyright@IJCRR ABSTRACT In the short term, a lack of adequate sleep can affect judgment, mood, ability to learn and retain information, and may increase the risk of serious accidents and injury. In the long term, chronic sleep deprivation may lead to a host of health problems includ- ing obesity, diabetes, cardiovascular disease, and even early mortality. These days, the treatment of sleep impediment speaks to a new challenge for health systems. So evaluation of factors affecting the quality of sleep has extreme significance. Previous studies have demonstrated the negative impact of high BMI on the quality of sleep. It was also stated that sleep deprivation is associated with obesity. Obesity and sleep disturbances are two major problems that adversely affecting the quality of life of humans worldwide. So this review aims to explore the association of Body Mass Index (BMI) with quality of sleep. Studies on the topic of quality of sleep and BMI will be reviewed so the findings of those articles will be used to explore the association between BMI and quality of sleep. Key Words: Sleep quality, BMI, Obesity