Sleep, once treated as a private matter of lifestyle, is increasingly recognised as a major factor in public health.
Medical research has linked poor sleep to a wide range of conditions, including heart disease, obesity, depression and reduced cognitive performance. Lack of sleep can also affect productivity, learning and road safety.
Modern life has made rest harder for many people. Long working hours, stress, screen exposure and irregular schedules can all disrupt healthy sleep patterns.
At the same time, public awareness is growing. Wearable devices and health apps now allow users to track sleep duration and quality, making the issue more visible.
Healthcare professionals warn, however, that technology alone cannot solve the problem. Sleep depends on broader social factors, including work culture, housing conditions and mental wellbeing.
Some employers and schools are beginning to reconsider schedules in light of research on rest and performance.
Experts say better sleep could improve health outcomes at relatively low cost compared with many medical interventions.
The growing focus on sleep reflects a wider shift in healthcare: understanding that everyday habits can have profound effects on long-term wellbeing.
