This website has been set up at a time when on the internet hardly any information about sleep was available in French or German but there were already many English speaking websites mainly from university sleep labs. Therefore, it was not as useful to bring more general information in English as in French and German. Moreover it was my French and German speaking family and friends who suggested to make thrilling information about sleep available online.
You can find interesting information and the newest research results in English for instance on the following websites :
Coma Science Group at the University of Liège for information about coma, which is related to sleep but is not sleep.