ShutEye®: Sleep Tracker
Overview
ShutEye, developed by Enerjoy Pte. Ltd., is a sleep-tracking and acoustic relaxation application. Designed to evaluate sleep quality and support relaxation, ShutEye pairs microphone acoustic monitoring with curated soundscapes, guided meditations, and smart alarm mechanics.
The primary analytical framework of ShutEye utilizes the device microphone to perform non-invasive sleep monitoring. By analyzing acoustic frequency patterns, the app estimates sleep stage transitions across light sleep, deep sleep, and Rapid Eye Movement (REM) cycles. The audio processing engine detects nocturnal audio events, capturing snore occurrences, sleep talking, coughing, and environmental noise interruptions. Users receive a morning sleep score alongside playable audio clips of detected nocturnal events.
To assist sleep onset, ShutEye features a audio customization engine. Users can build custom soundscapes by layering multiple sound tracks—combining white noise, pink noise, rain, ocean waves, forest ambiance, wind, and campfire sounds. This is supplemented by bedtime sleep stories, guided breathing routines, and mindfulness content focused on stress reduction.
The wake-up routine is managed by a Smart Alarm system. Rather than sounding at a fixed minute, the Smart Alarm monitors real-time sleep stage estimates during a user-defined morning window, triggering gentle audio alerts when the user enters light sleep to minimize waking grogginess.
Pros & Cons
Comprehensive sleep cycle stage estimation and sleep quality scoring.
Snore detection with audio recordings of nocturnal vocal events.
Extensive audio library with multi-track soundscape mixing features.
Smart Alarm engineered to wake users during light sleep phases.
Integrated mental wellness resources including bedtime stories and guided meditations.
- ✕
Full access to long-term trend analytics and sound libraries requires a premium subscription.
- ✕
Ambient environmental noises or room fans can occasionally trigger false snore classifications.
- ✕
Continuous night-long microphone processing increases battery consumption if unplugged.
Download
FAQs
How does ShutEye track sleep without a wearable device?
ShutEye uses the smartphone's microphone to monitor breathing patterns, movement sounds, and ambient acoustic events while placed near the bed.
Are background room conversations permanently recorded?
No, the audio engine isolates specific acoustic spikes like snoring or talking, saving short audio clips while discarding background noise.
How does the Smart Alarm determine the wake time?
The user sets a target time window (e.g., 20 minutes). The app tracks sound signals to detect light sleep during that window, triggering the alarm at that point.
Can background sounds be customized into personal mixes?
Yes, ShutEye allows users to select and layer individual audio tracks like rain, thunder, white noise, and wind, adjusting volume levels independently.
Does the phone need to stay connected to a charger overnight?
Yes, because continuous acoustic tracking operates throughout the night, connecting the device to a power source is recommended to prevent battery drain.
Hot Reviews
Summarized from Google Play reviews and community discussions.
Users praise the snore recording tool, noting that audio playbacks provided useful insights into night disruptions.
Reviewers highlight the multi-track audio mixer, reporting that combining nature sounds with white noise helps accelerate sleep onset.
Positive reviews emphasize the Smart Alarm, noting that waking up during light sleep phases reduced morning grogginess.
Some users mention that while basic audio features are accessible, long-term trend reports require paid membership tiers.