If you or he have an iPhone there’s an option in settings to play various types of background noise, including white noise.
Edit: You can access it by going to Settings > Accessibility > Audio/Visual > Background Sounds. Using the built in option might avoid ads being played and waking you guys up.
If you or he have an iPhone there’s an option in settings to play various types of background noise, including white noise.
Edit: You can access it by going to Settings > Accessibility > Audio/Visual > Background Sounds. Using the built in option might avoid ads being played and waking you guys up.