Deleting sleep data 2023

Hi there tho1091,

Thank you for posting to Apple Support Communities.

If you entered incorrect details when manually adding health information, you can delete the record.

1. Open the Health app and tap the Browse tab. 
2. Tap a category, like Activity. 
3. Tap a subcategory, like Steps.
4. Tap Show All Data, then tap Edit in the upper-right corner.
5. Tap the Delete button next to the record you want to delete. You can also tap Delete All to delete every record.

Manage Health data on your iPhone, iPod touch, or Apple Watch

That should help. If you had additional questions, Contact Apple Support

Take care.