I use it every time I have to organize my sleeping time when I’m with a busy work schedule. It helps me to calculate a waking up or sleeping time options so I can feel rested :) and it’s easy to use!
I am a person who likes to stay in bed very much. Since using this app, I have never been late for work. I fall asleep on time according to the prompt time every day. I have enough sleep and am full of energy. I recommend it to everyone!