Sleep better.
Wake up easier.
A smart alarm, sleep-phase analysis, snore and sound detection — all running right on your phone.
Everything for perfect sleep
From recording and analysis to personal recommendations. One phone instead of expensive gadgets.
Microphone analysis
No watches or wristbands — just place your phone nearby. The microphone picks up every sound of the night.
On-device AI
Built-in AI analyzes the sounds and detects 12 categories of sleep events. Everything is local — your data stays safe.
Smart alarm
A reliable alarm with a gentle fade-in. 5 wake-up games make sure you actually get up.
Sounds for falling asleep
38 built-in tracks — nature sounds and relaxing music. Add your own and drift off to your favorite melodies.
Detailed analytics
Sleep phases (Awake / Light / Deep), events (snoring, talking, coughing), weekly trends and sleep quality.
Personal recommendations
The AI reviews your 14-day history and finds your optimal bedtime, wake-up time and sleep duration.
Three simple steps
No complex setup. No wearables. Just your phone.
Start recording
Place your phone next to the bed and tap “Start alarm.” The app begins recording and plays gentle sounds to help you fall asleep.
- One-tap start
- 38 sleep tracks
- Automatic mode
Sleep peacefully
The AI works all night — analyzing sleep phases and recording snoring and other events. Battery use is optimized.
- On-device AI analysis
- 12 event categories
- Battery optimization
Wake up with results
The smart alarm wakes you in your optimal phase. In the morning — a detailed report and personal recommendations.
- Smart alarm
- Personal recommendations
- Detailed analytics
Download
Capybara Sleep
Your personal AI sleep analyst. Start sleeping better from the very first night — download the app.
People love Capybara Sleep
Reviews from our users
«I finally understood why I wake up groggy — turns out I snore all night»
«The smart alarm is magic. I wake up in a light phase and feel rested»
«I was amazed by the accuracy — the app detects when I talk in my sleep»
«The sleep sounds are a whole vibe. I pick a relaxing track and drift off in 5 minutes»
«I’ve used the app for a month and feel more energetic. I wake up happy»
«The sleep-phase charts showed me that coffee after 9 PM kills my sleep :)»
«I finally understood why I wake up groggy — turns out I snore all night»
«The smart alarm is magic. I wake up in a light phase and feel rested»
«I was amazed by the accuracy — the app detects when I talk in my sleep»
«The sleep sounds are a whole vibe. I pick a relaxing track and drift off in 5 minutes»
«I’ve used the app for a month and feel more energetic. I wake up happy»
«The sleep-phase charts showed me that coffee after 9 PM kills my sleep :)»
Frequently asked questions
Capybara Sleep uses your phone’s microphone and a neural network to analyze the sounds you make while sleeping. The app detects sleep phases, records sound events — snoring, talking, coughing and others (12 categories in total) — and builds a detailed report with recommendations.
No. All sound processing happens locally on your device. Audio recordings, analysis results and recommendations are stored only on your phone. We don’t collect, transmit or have access to your sleep data.
The alarm tracks your sleep phases and wakes you at the best moment — during a light phase within your chosen window. And to make sure you actually wake up, there are 5 challenges: solving math, memorizing a sequence, shaking the phone, walking around the room and more.
No, the app is optimized to run in the background. Overnight battery use is around 10–14%. Close other apps to reduce usage and improve recording stability. We recommend keeping your phone on the charger so it’s ready by morning.
The app has a library of 37+ tracks — nature sounds, relaxing, meditative and more. You can switch tracks and set a sleep timer. You can also upload your own music.