One smartphone user learned this the hard way when he left his device to charge under the pillow. This action eventually sparked a fire.
A lot of people have become very used to plugging their phone at night time and simply placing it under their pillow while it charged. This has now been shown to be a very terrible idea and can lead to disastrous consequences.
Luckily, he was not asleep on the pillow at the time and the whole bed did not burst into flames.
The photo went viral online when a fire brigade shared it to show what can happen if you leave your phone unattended under your pillow. Preferably, you should place them on a table-top desk-top.
Phones can get very hot and without adequate ventilation, it can get so hot that it sparks a fire. The fire expert also advised that you should not charge or use your laptop on a bed either. It can heat up when left on soft surfaces and can cause a fire.