Here's what is available in the free version of Pillow:
Automatic sleep tracking and analysis
Selection between Pillow or Apple's sleep stage analysis
Manual sleep tracking
Pausing manual sleep tracking
Mood tracking
Time to sleep indication
Time in bed
Time asleep
Heart rate average, maximum heart rate and minimum heart rate
iCloud syncing and backups
Apple Health integration
Siri integration
Support for Shortcuts to start a session as part of a custom automation
Turning off screen for manual sleep tracking
Wake-up time goal
Optimal bedtime notification insight
Custom bedtime notification
Unlimited customisable alarm presets
Full access to all previously detected sleep sessions for basic sleep analysis
Seeking values on the sleep chart
Updating your alarm time without restarting the alarm
Daily re-analyzing for sleep sessions recorded with your Apple Watch
Landscape mode for sleep tracking
Apple Watch battery notification
Home Screen widget
All lock screen widgets
All Apple Watch complications
Light/Dark theme
Exporting and managing data options
Live Activities
Please note that the list may change in the future and the availability of the features depends on the device(s) that you use. Some features require an Apple Watch or a newer version of iOS or watchOS.
As always there's always room for improvement and we always consider new ideas and suggestions. Feel free to send us your ideas at pillow@neybox.com