Sleep Cycle (iOS)
Used by 3 peopleapps.apple.com ↗
“Tracking progress: – I got into sleep tracking by accident and have been using Sleep Cycle for almost nine years now.”
Lena Reinhard Interview, Director of Engineering, CircleCI · via Uses This 
“Sleep Cycle to track my sleeping patterns”
Jess Allison Interview, Organiser, producer, delivery manager (Paper Giant) · via Uses This
