Should you let your phone charge overnight?

Your body refreshes itself at night as it prepares for a full day ahead. So why shouldn't your smartphone battery get the same treatment? Now, when you are fast asleep dreaming about the 2018 flagships, the cell inside your phone will charge for the two hours or so that it takes to get back to full strength. For the rest of the night, software will stop the charging process once the battery is back to 100%. This prevents damage that could be done to the battery by overcharging. But it doesn't prevent the battery from generating heat.

If you keep your phone under your pillow or blanket, ...