Background: A person's health and wellness are impacted by getting good sleep. The next day's freshness, energy, enthusiasm, and sanity depend on it. It promotes comfortable sleep and empowers us when we wake up. The objectives of the study are to assess the quality of sleep and offer academic performance among undergraduates in selected colleges. Materials and methods: A quantitative descriptive research design was used. About 28 subjects were selected by using convenience sampling technique who fulfilled the inclusion criteria, and they availed themselves during the data collection at selected colleges in Uttar Pradesh. Data were collected by using sleep quality scale (SQS) and academic performance [grade point average (GPA)]. Informed consent was obtained from all participants. Results: Overall quality of sleep revealed its level, 24 (85.7%) had a fairly good sleep, 3 (10.7%) had fairly bad sleep, and 1 (3.6%) had very good sleep. Academic performance of the undergraduate students was 13 (46.4%) excellent, 9 (32.1%) outstanding, 4 (14.3%) very good performance, and 2 (7.1%) good. So, the study concluded that good quality of sleep improved the academic performance of undergraduate students. Conclusion: Quality of sleep improves the academic performance of undergraduate students. So, better and good sleep improves not only memory but also excellent academic performance.