1. Summary of the internationally most used sleep improvement methods (2.000 words English written excl. connected source overview)
2. Overview (internationally incl. selection ground) of: (a) the 10 most cited scientists, (b) the 10 best coaches, (c) the 10 most cited articles, (d) the 10 best ranked books, (e) the 10 highest ranked websites, (f) the 10 most viewed short <10 min. movies, (g) the 10 most popular apps, (h) the 10 newest apps, (i) the 10 most popular facebook pages, (j) the 10 most popular instagram pages, (k) the 10 best onlinestores on the field of sleep improvement.
3. A review of the 20 most used and the 10 newest tools to improve your sleep (including an English review based on described and refered source grounds “filterable” in Excel based on: Product name, price, material, ease of use, effectiveness, pro's and con's).