SNORELEIF App is a smart algorithm on smartphones that able to detect and analysis snoring sounds while sleeping, when snore sound is detected, the application will notify the sleeper with light and short pulses through a smartwatch (Pebble, Android wear or Apple Watch) to allow the sleeper to shift the incorrect positioning of sleeping without waking him/her up from the sleep. Once the sleeper has shifted the position, the vibration on the smartwatch will automatically stop to avoid waking anyone up. If the person asleep continues snoring, the watch will increase the strength of the vibrations to make sure the sleeper shifts their position.