Sleepwave is a smart alarm clock and sleep tracking app. Instead of relying on traditional audio recording and recognition, it uses the phone’s speaker to emit inaudible sound waves, then captures the reflected signal with the microphone. Its PureTone Motion technology detects movement and breathing in bed. The app focuses on “wearable-free” sleep tracking and can wake users at a more suitable moment within a user-defined window of 15 minutes to 1 hour.
Based on the main content, Sleepwave appears to offer machine learning and data analysis capabilities, estimating sleep stages, time to fall asleep, wakefulness, sleep depth, and breathing rate. It also includes gentle wake-up alarms, sleep music, custom soundscapes, Wavescapes motion visualization, a dream journal, and sleep sound recording. Apple Watch support is a plus: users can set alarms independently on the watch or sync with the phone to view sleep statistics. Compared with solutions that require a wristband or smartwatch, it is more convenient; compared with apps that rely purely on sound recognition, the official positioning emphasizes that its motion signals are more accurate.
Sleepwave is free to download. The free tier already includes nightly sleep tracking, charts and statistics, standard alarms, and smart alarms, making it a strong value. The Premium subscription adds more trend statistics, more sounds, custom soundscapes, sleep notes, additional recordings, a dream journal, and goal features, but the website does not disclose specific pricing; users need to check inside the app. On privacy, Sleepwave emphasizes that it requires no registration, collects no personal data, does not record audio for basic tracking, and can work offline and in airplane mode. However, the sound recording feature itself involves capturing sleep sounds, so users should still pay attention to permissions and how recordings are stored.
Its strengths are a low barrier to entry, no need to wear a device, practical free features, offline operation, and a complete experience built around “waking up more comfortably.” The limitations are also clear: there is no cloud backup, so deleting and reinstalling the app will erase historical data; overnight battery usage may reach around 50%; sharing a bed may introduce interference from a partner’s movements; automatic background startup is limited by system privacy restrictions; and some features, such as sound recording and external audio timers, are not yet fully available on Android. It is suitable for users who want to improve how they wake up but do not want to sleep with a watch on. If you need medical-grade sleep diagnosis or long-term cloud-based data management across devices, it is not a perfect fit.
The main content does not specify whether the official website and app stores are accessible in mainland China, or whether subscription payments are available there, so this remains unknown. If Google Play or overseas App Store payments are not available, alternatives include Apple Watch/Apple Health’s built-in sleep features, domestic fitness band sleep tracking, or apps such as SnoreLab and Sleep Cycle.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on sleepwave.com official site.
sleepwave.com is an United Kingdom AI Apps provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach sleepwave.com directly.