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
Mood tracking
iCloud syncing and backups
Apple Health integration
Merging sleep sessions
Siri integration
Support for Shortcuts to start a session as part of a custom automation
Turn-off screen for manual sleep tracking
Wakeup 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
Seek values on the sleep chart
Update your alarm time without restarting the alarm
Pause manual sleep tracking
Re-analyze every day for automatic sleep sessions
Landscape mode more for sleep tracking
Apple Watch Battery notification
Home Screen widget
All Lock Screen Widgets
All Apple Watch Complications
Light/Dark themes
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