SleepBot - SleepBot is a sleep tracking app available in Google Play and the Apple App Store.
Sleep Cycle - Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.
Sleep as Android - Common alarm clocks ignore your sleep cycles, they wake you on schedule no matter your are currently in your deep sleep. Waking up from deep sleep is unpleasant, it makes you tired and it may negatively affect your productivity during the whole day.
Pillow for iOS - An iOS companion that helps you sleep better 💤
Talalarmo - Minimalistic android alarm
Sleep Calculator - Want to wake up in a good shape?