Sonalarm is the first sleep cycle alarm clock app that works from your bedside table with no additional hardware. Sonalarm reliably detects when you turn around in bed through an ultrasonic motion sensor, by making use of your iPhone’s built-in audio hardware and clever programming. You dont need to share your bed with your iPhone (like it is required for the existing sleep cycle apps). With Sonalarm, your smart phone stays on the bedside table where it belongs!
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Sleep research
During the night, every time you turn around, you are awake or almost awake. Normally, you just go back to sleep so fast that you wont remember it the next morning. By monitoring your movements, Sonalarm can wake you up at the best moment (when you are almost awake anyway). Sleep research has shown that you will feel more refreshed even if you woke up earlier.
Alarm time window
Sonalarm makes use of this effect. Say, you really need to get up at 7:30. Thats the alarm time you set. Depending on a setting, the activation window will start 20 to 60 minutes earlier. If Sonalarm detects that you are almost awake during this period, the alarm will start and wake you up completely.
Sleep analysis and statistics
After the first night, sleep statistics will be available on the stats tab. Sonalarm analyzes your movements during the night and gives you an overview the next morning. You see when you were awake, in a light or deep sleep phase. Totals are shown below the chart.
Health integration
Sonalarm allows you to export your sleep analysis to your iPhones Health Store so you can view it in Apples Health app or import it into other apps. The app requires read and write access if you want to use this feature (the read access is required to enable Sonalarm to modify sleep analysis data it has previously stored).
Background operation
You can lock your screen to conserve energy if you dont need the night clock. Unless you have your iPhone fully charged, we recommend you connect it to the charger during the night.
Fall asleep to relaxing rain sounds
You may optionally make the app play relaxing rain sounds to fall asleep. The duration can be configured on the settings tab, and you can also turn off the noises there. At the end the sounds are faded out gradually.
Sonalarm is available for the iPhone 4 and newer iPhones. iPads and iPod touch devices are currently not supported, but support may be added in the future.
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Thanks to Siniz for the design support.