Studies show: Good sleep makes us healthier, happier and is even more important than diet and exercise! Nevertheless, 80 % of working people in Germany sleep poorly. If you use this book, you will switch to the side of the other 20 %. Millions of people are already making their days happier with the proven 6-Minute-Principle®. The same successful principle now ensures restful nights. The book combines the latest findings from sleep research with a journaling section to fill in and reflect on. We find out what prevents us from getting a good night's sleep and turn the screws to finally get a good night's sleep again! 6 minutes a day for small changes with a big effect.