My family of 5 will be traveling in July from Grindelwald, Switzerland to Prague. It is a long trip for one day. Would it be better to go part way, stay somewhere overnight and continue the next day or take a night train. There is supposed to be a night train from Zurich to Prague, but I am having trouble finding information on it.
There is a night train from Zurich to Prague you can on the OeBB Night Jet
https://www.nightjet.com/en/reiseziele.html
Or you can fly from Zurich.