What if your smartphone is the culprit behind your restless nights? We put it on the bedside table almost without thinking, as a reflex. Yet, sleep specialists have been warning for several years about the subtle but real effects of this widespread habit. Chronic fatigue, waking up during the night, lack of energy in the morning… The link is more direct than we imagine. So, should we really banish our phones from the bedroom?
Blue light, the invisible enemy of your sleep
We vaguely know this, but we quickly forget it when scrolling before bed. Smartphone screens emit so-called “blue” light that disrupts the production of melatonin—the hormone that tells our body it’s time to sleep. The result? It takes us longer to fall asleep, and our internal clock gradually shifts.
In practical terms, it’s a bit like turning on the light in the middle of a nap. The brain receives a conflicting signal and takes time to recalibrate. Even twenty minutes of consultation before closing your eyes can be enough to delay your sleep onset.
Notifications, those little thieves of deep sleep
Even when switched off or on silent mode, a phone placed near the bed remains a source of disturbance. A vibration, a screen that briefly lights up, or simply the urge to “just check something” upon waking at 3 a.m… These micro-interruptions fragment sleep without us even being aware of it.
However, the phases of deep sleep and REM sleep are essential. They allow memory to consolidate, emotions to regulate, and the body to recover. Regularly interrupting them deprives the body of true nighttime restoration.
The long-term effects should not be taken lightly.
Continued on next page//
