Insomnia is a sleep disorder in which a person has trouble falling asleep and staying asleep. It is, caused due to various factors like stress and anxiety. Insomnia is usually frequent among teenagers and middle-aged, and it is now more common in the 21st century. As a result of the global pandemic, many individuals suffer from insomnia due to excessive exposure to smartphones, especially at night. In most situations, an inadequate amount of sleep leads to tiredness and fatigue. It is advised to get at least 7 to 8 hours of sleep per night to stay energized throughout the day. Gadgets like smartphones are used by people, particularly during the pandemic lockdown period, to cope with boredom. This study aims to find whether young adults between the age of 17 and 30 suffer from insomnia or sleep disturbances due to imprudent usage of technology and exposure to blue lights at night by using a purposive sampling method. The purpose of this paper is to examine the relationship between the utilization of smartphones and circadian rhythm. This research enables assessment and spread of awareness about how smartphones affect the necessary resting period of young individuals which is merely important to stay in a healthy physical and mental condition and enables to get empirical data on the assumptions about smartphones. The findings of this study could provide the information needed for future educational and research purposes that will help the researchers uncover critical areas related to this study. The tools used for the study are Smartphone Addiction Scale (SAS; Kwon et al.), Pittsburg Sleep Quality Index (PSQI developed by Buysse DJ, Reynolds CF, Monk TH, Berman SR, Kupfer DJ, and Insomnia Severity Index (IST) developed by Morin CM; Belleville G; Belanger L; Ivers H.