How do I make my new iPhone as a source for sleep tracking in Health app?

Hello,

I’m having an issue with the Health app on my iPhone.

I switched to a new iPhone more than a year ago and I’m only using the new device. I removed my old iPhone from the Health data sources.

However, my new iPhone does not appear under Health → Sleep → Data Sources & Access, so I cannot set it as the active source for sleep tracking.

In the list I only see other apps (like Flo), but not the iPhone itself.

Also, I cannot find the “Track Sleep with iPhone” toggle in the settings.

I’ve already tried:

• checking iCloud Health settings,
• setting up a new Sleep Schedule in the Clock app,
• removing the old iPhone from sources,
• restarting and resetting settings.

Still, my new iPhone doesn’t show up as a sleep data source.

Could you please advise how to make my new iPhone appear in Health as the active sleep source?

[Re-Titled by Moderator]

Original Title: My phone as a source for sleep tracking