WORLD (Enmaeya News) – November 7, 2025
It seems that browsing your phone before bed is not as harmful as many believe, as recent research shows that using screens at night does not affect adults’ sleep quality.
A study conducted by Toronto Metropolitan University and Laval University in Canada found that using a phone during nighttime, before sleeping, does not negatively impact sleep quality as commonly assumed.
The study, which surveyed over a thousand adults across Canada, asked participants about their use of electronic devices before bedtime and its relation to their sleep quality.
Researchers found that overall sleep quality was similar between those who used screens every night and those who never used them.
The study, published in the journal Sleep Health, also noted that adults who used electronic devices before sleep almost daily reported better sleep timing and higher daytime alertness.
Conversely, those who used screens less than once a week recorded the highest levels of sleep regularity and satisfaction.
Colleen Carney, a specialist in sleep and mood disorders at Toronto Metropolitan University, explained that previous studies on "blue light" did not consider factors such as age, timing, and intensity of exposure when making recommendations about its effects.
She added: "There may be reasons to be cautious about excessive blue light exposure in the evening among teenagers, as sensitivity to light is higher at that age. However, as we age, we become less sensitive to light, and changes in the eyes reduce its impact on sleep quality”.
Carney advised users to monitor the relationship between their phone use and sleep quality.
She said: "If you notice that you sleep better when you stop using devices earlier, make it a new habit. If you don’t notice a difference, as was the case for many study participants, the devices are not the problem as we once thought”.
Previous studies had suggested that using electronic devices before bed negatively affects sleep quality and duration, as well as memory and concentration.
