This feature on your iPhone can actually help you sleep. Here’s how to use it.
https://www.huffpost.com/entry/iphone-white-noise-feature-ano_l_64b7e501e4b0dcb4cab68cef
..iPhones running on iOS 15 or later all have a white noise feature built-in, so long as it’s an iPhone 6S or later and the software is up to date. (For reference, iPhone 6S models were first available in 2015, so more recent iPhones will have this feature.)..
To get to this feature, go to Settings > Accessibility > Audio/Visual > Background Sounds.
Once here, toggle on background sounds and you’ll be greeted with a relaxing sound to help you sleep or focus.
You can choose from a range of sounds: rain, stream, ocean, balanced noise, bright noise and dark noise. You can also adjust the sound’s volume.
That’s all you have to do to select your preferred background sound and volume level…