Your phone never actually sleeps (here's what it's doing all night)

Your phone may look still at night, but it’s typically busy with tasks designed not to interrupt your day. The article says overnight is commonly when Android installs updates, sometimes even restarting automatically after applying new software. It also explains that charging habits matter: lithium-ion batteries shouldn’t sit at 100% for extended periods, so many phones limit charging at around 80% and may delay full charge until shortly before you wake up. Beyond updates and charging, it notes background work such as backups to cloud services and app data uploads that run when the phone is on Wi-Fi and charging, plus activity from Google Play Services.