The Effect of Pre-Sleep Smartphone Usage and Sleep Duration on the Daytime Alertness of Adolescents and Young Adults

Walija Noor; Misbah Karamat

doi:10.63056/academia.5.3.2026.2448

Authors

Walija Noor Bachelor of Science in Psychology Student, Department of Psychology, Government Post Graduate College for Women, Haripur Author
Dr. Misbah Karamat Lecturer, Department of Psychology, Government Post Graduate College for Women, Haripur Author

DOI:

https://doi.org/10.63056/academia.5.3.2026.2448

Keywords:

smartphone usage, pre-bed screen time, sleep duration, daytime alertness, adolescents, young adults, SAS, SQS, ESS

Abstract

This is a study on "The Effect of Pre-sleep Smartphone Usage and Sleep Duration on the Daytime Alertness of Adolescents and Young Adults". A cross-sectional study design with 300 participants (150 adolescents and 150 young adults) was used, sampling from four places of Pakistan (Haripur, Islamabad, Abbottabad and Mansehra). Three valid instruments were used to gather participants' responses: the Smartphone Addiction Scale (SAS), the Sleep Quality Scale (SQS), and the Epworth Sleepiness Scale (ESS).The analysis, which was done with SPSS, showed important relationships among the use of a smartphone before sleep, the duration of sleep and feeling alert in the day. In particular, young people (aged 13 to 17) who use their smartphones before sleep indicated poorer sleep quality and shorter sleep duration. These results provide interventions in different contexts (school, home, and clinic) to reduce use of screens at night, promote sleep hygiene, and increase daytime functioning, which may lead to better academic performance, mood, memory, and general well-being, and add to knowledge in this field.