Have you ever noticed the days when you feel alive and fresh after you slept a few hours at night? And sometimes you might feel tired and exhausted even after 10 hours sleeping night?!
There is a scientific explanation for these situations: our sleep consists of cycles and if we break them, we influence badly on the organism restoring process.
“Productive sleep” is a unique alarm clock, which helps you to feel good no matter if you can sleep as long as you want or you can’t.
