Sleep Cycle Alarm Clock
“Waking up made easy” is their slogan. The popular app, Sleep Cycle, stays true to its word. It tracks your sleeping habits and monitors your movements while asleep by using the motion sensors in your iPhone. Add sleep notes like how much coffee you had during the day, or stressors that tend to keep you up late at night.
It also analyzes the different phases of slumber, and will sound the alarm at your lightest point of sleep.
Just place it under your pillow and zonk out.
Only for: iPhone, iPad
Made by: Northcube AB
Added bonus: the app measures your resting heart rate.