BetterSleep represents a significant evolution from its previous incarnation as Relax Melodies, maintaining its core audio functionality while expanding into comprehensive sleep tracking and analysis. The application positions itself as a holistic sleep solution platform, having earned Google Play's Editors' Choice designation and validation from sleep experts and medical professionals. With 91% of users reporting improved sleep within one week of use, the app demonstrates measurable effectiveness in sleep quality enhancement. The application's core functionality revolves around two primary components: advanced sleep tracking technology and an extensive library of audio content. The sleep tracking feature monitors sleep stages, duration, and patterns using smartphone sensors, providing users with detailed metrics and trends over time. The audio library contains thousands of sound options ranging from simple nature sounds to complex, layered soundscapes, alongside guided meditations, hypnotic narrations, and bedtime stories. Users can create custom sound mixes or choose from pre-designed sessions tailored for specific sleep scenarios. User experience centers around an intuitive interface that organizes content by use cases such as calming, meditating, or achieving deeper sleep. The design facilitates easy navigation between tracking features and audio content, with personalized recommendations based on user patterns. Real-world usage patterns show most users engage with the app during evening wind-down routines and overnight tracking, with many reporting use for masking environmental noises that disrupt sleep, as noted by user Jeff Knowles regarding the app's distraction capabilities. User feedback trends indicate strong satisfaction with audio variety and sleep improvement results, though some historical concerns exist regarding subscription models. Positive reviews from users like Sedona Diemer (August 2025) highlight effective customer support responsiveness to premium feature concerns, while Isabella Zimmerman's July 2025 update notes improved value proposition regarding subscription pricing. Some users express desire for more flexible payment options, as evidenced by Rochelle Scott's comment about monthly payment preferences. The application demonstrates particular strength in audio customization and sleep pattern analysis, though some limitations exist in sleep tracking accuracy compared to dedicated wearable devices. Ideal use cases include individuals seeking audio-assisted sleep improvement, those needing environmental noise masking, and users preferring smartphone-based sleep tracking without additional hardware. The balance between extensive free content and premium features provides accessibility while maintaining sustainable development through subscription revenue.