To remove an incorrect sleep reading on your account, you can follow the instructions below or watch this demonstration within the app!
Instructions:
Select the 'Track' icon from the bottom toolbar in-app and ensure the 'Sleep' heading is highlighted
Select 'View all data'
Select the arrow next to the sleep reading you'd like to delete
A box will pop up at the bottom of the screen
Select the red 'Delete sleep for this day' field that appears