It’s a common habit for many: plugging in the phone before bed and waking up to a full battery. But is it really safe? Apple’s recent warning reminds users that while overnight charging itself isn’t necessarily harmful, where and how you charge your device can make all the difference.

According to Apple, leaving your iPhone under a pillow or blanket while charging is dangerous. Obstructing the device prevents heat from escaping, which could lead to overheating. What starts as a simple bedtime routine could cause serious risks, including fire and injury.

For those wondering if it’s safe to use a phone while it’s plugged in, one Apple community member, Lawrence Fich, offered a reassuring answer: “It’s safe to use the phone while charging. It will slow the charging rate slightly, as the energy from the power source goes to operate the phone, and the battery is charged with whatever is left.”

Even Apple’s competitor, Samsung, weighed in on the issue. Addressing the question of whether overnight charging could harm a Galaxy phone, Samsung stated on its official website: “Absolutely not! Your phone’s battery will not be at risk of overcharging if you leave it plugged in overnight. Modern smartphones are equipped with smart charging technology that halts the charging process once the battery reaches full capacity. The charger only kicks in occasionally to top off the battery, maintaining it at 100%. These are called ‘maintenance charges,’ and they ensure that your battery remains full until you unplug your phone.”

Both companies agree on one thing. Where you charge your phone matters. They both advise against placing phones or chargers under blankets, pillows, or your body during charging, especially for individuals who may not easily notice heat buildup.

While it’s often recommended to unplug the phone once fully charged to slightly extend battery life, the practical benefit is minimal. Losing sleep just to unplug a device probably won’t make a noticeable difference for most users. Adjusting simple phone settings, like reducing screen timeout, is a better way to protect battery health.

One more important point in Apple’s advisory is the use of chargers. Choosing cheap, unverified cables might seem like a small way to save money, but it carries serious risks. Third-party chargers that don’t meet official safety standards can increase the chance of overheating or even electric shock. Using certified products labeled “Made for iPhone” or “Made for Samsung” offers more protection and peace of mind.

In the end, the answer to the question is a balance of convenience and caution. Charging overnight is generally safe as long as the phone is placed in a well-ventilated spot and connected with proper accessories. It’s a simple step to avoid turning a routine habit into a potential hazard.