As I write, community investment in a new Dutch-run European night train company called European Sleeper has just opened.
Here is a link to their website for more information.
The train will go from Brussels to Amsterdam to Prague, and vice versa.
One positive thing to note is that the project is in association with the private Czech bus and train operator RejioJet who reinvented pleasant bus rides (Student Agency) in the Czech Republic 15 years ago, with free water, comfortable seats,and functioning toilets. This is probably a good move.
In the time it took me to write these few lines, the initial offer sold out!
In less than twelve minutes.
[PS: this post is not investment advice, just a heads up!]