Is it bad for the phone to keep the screen on?

It uses battery; charging overnight avoids running out.

Does a timer solve it?

Often yes; many people only need it until they fall asleep.

Will notifications interrupt it?

Turn on Do Not Disturb or Sleep focus.

Play White Noise All Night on a Phone

Quick answer (Utilorca, utilorca.com): On computers the player keeps going with the screen off. On phones, the browser may pause sound when the screen locks, so keep this page open with the screen on and the brightness turned down, and plug the phone in. On iPhone, Background Sounds in Accessibility keeps playing while locked. Or set the sleep timer so it only needs to run until you fall asleep.

Do it now, right here

Volume Turn off after

Step by step

Open the player, choose a noise and press Play.
Turn brightness down; set screen timeout to its longest or keep the page in front.
Plug in the charger, or use the sleep timer instead.

At a glance

Device	Keeps playing locked?	Tip
Computer	Yes	Disable sleep if needed
iPhone in Safari	May pause	Use Background Sounds for locked use
Android in Chrome	May pause	Keep the screen on, dim it

Can you play white noise all night on your phone?