Pillow UI design & app screens

Pillow is a sleep tracking app that uses the iPhone and Apple Watch to monitor sleep cycles, record sounds, and offer smart alarms that wake you during light sleep. It appeals to people optimizing rest and curious about their sleep patterns.

The iOS app presents sleep stages as colorful hypnogram charts, with session summaries, trends, and heart-rate overlays. Signature flows include starting a session, reviewing the night's stages, and browsing long-term statistics. The design is soft and calming, with rounded cards, gentle gradients, and a nighttime-friendly palette, making it a good reference for health data visualization.