You sleep with your phone? Here's the big reason for not doing it

You sleep with your phone? Here's the big reason for not doing it

You may think that the reason is due to the blue screen light or even the radiation emitted by the mobile phone, but the real reason may pose a much greater danger to which you should be aware.

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09/11/2026
by

Miguel Patinha Dias

Ntoday there are people who use the phone to pass the time before they fall asleep. Whether you watch series on Netflix, watch videos on YouTube or TikTok, browse Instagram or X and even read, everyone will have their strategies, but in addition to the blue light emitted by the screen being counterproductive, there is another good reason not to have the phone in bed.

 

It turns out that many take advantage of the nighttime to charge their mobile phone and, if they are in the habit of using the device before they fall asleep, it may occur in case of overheating if the equipment ends up under the cushion.

The charging of the phone already makes the temperature inside the equipment higher than normal, especially if the phone counts on fast charging. Depending on the model and if the mobile phone has no protective mechanisms during loading, it may even occur if it is not recommended to leave it attached to the charger all night long.

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If you've spent hours watching videos on Instagram or TikTok after you've picked up your phone to send a quick message, you'll certainly want to have more control of the time you spend looking at the screen.

Miguel Patinha Dias

Regardless, having your phone between the pillow and the mattress all night is dangerous because the energy generated inside the phone has no easy way to dissipate. Thus, if night motions result in the phone being placed under a cushion, the temperature of the device may reach unrecommendable levels and, perhaps, may even occur if there is a risk of fire.

The safest thing is not having your phone on the bed when you go to sleep. Even if you choose to use your phone before you fall asleep, you should always leave it on the bedside table before you sleep to prevent any lack of attention from resulting in a more serious accident.

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