Tehran University of Medical Sciences Journal of Sleep Sciences 2476-2938 5 1 2020 09 30 40 41 Shahram Samadi Department of Anesthesiology and Intensive Care, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran Seyed Mohammad Mireskandari Department of Anesthesiology and Intensive Care, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran 2020 05 05 2020 07 18 1I read with great interest the article titled ‘Tracing the relationships between sleep disturb-ances and symptoms of irritable bowel syndrome’ by Moradian Shahrbabaki et al. The authors con-ducted an interesting cross-sectional study about the correlation between irritable bowel syndrome (IBS) and sleep quality which may also apply to other sleep features. https://jss.tums.ac.ir/index.php/jss/article/view/166