Nearly 1.5 billion of us are iPhone users. On a global scale, that accounts for over 21% of the entire population that uses a smartphone. 

With that many of us using (and being delighted by) iPhones, it’s easy to take for granted how much design, engineering, labor and fulfillment goes into the backend of each pricey little device. 

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Of course, iPhones aren’t perfect. Despite their unusually high satisfaction rate, the tech is bound to have issues at one point or another, even at at a price point of $999 or more for an iPhone 14. 

And iPhones aren’t the only ones. Various Apple devices have recalls due to a variety of issues, including the Apple Watch Series 6 for a Black Screen Issue, the iPhone 12 and 12 Pro for No Sound Issues, and the 15-inch MacBook Pro for Battery Overheating/Fire Risk. 

Apple issues a warning about iPhones

Typically, Apple issues a warning and happily takes back a dud before it has much time to percolate on the market. It wants all of its customers to be delighted with its products and stands behind the integrity and engineering of each device with proper use. 

Recently, however, Apple has issued a warning about iPhones on its user guide, alerting people of a hidden danger that might be lurking in the bedroom. 

In an article headlined “Important safety information for iPhone,” Apple says charging iPhones overnight may result in fire, injury, or electric shock.

“Use common sense to avoid situations where your skin is in contact with a device, its power adapter, or a wireless charger when it’s operating or connected to a power source for long periods of time,” the warning reads. 

“For example, don’t sleep on a device, power adapter, or wireless charger, or place them under a blanket, pillow, or your body, when it’s connected to a power source. Keep your iPhone, the power adapter, and any wireless charger in a well-ventilated area when in use or charging. Take special care if you have a physical condition that affects your ability to detect heat against the body.”

Apple also says iPhone users can use third party (non-Apple branded) chargers but to do so with caution. 

“You can also charge iPhone with ‘Made for iPhone’ or other third-party cables and power adapters that are compliant with USB 2.0 or later and with applicable country regulations and international and regional safety standards. Other adapters may not meet applicable safety standards, and charging with such adapters could pose a risk of death or injury.”

It’s estimated that 64% of us charge our phones overnight, presumably in or next to our beds. This warning should be taken seriously and you should always make sure your charger is compliant with the latest safety regulations.