The direct line Paris-Barcelona doesnt have any night train.
If you rly want to travel by night, there are some other options with 1 to 3hrs layovers (usually early morning)
Thanks... I'd read that I need to go either via Perpignan or LaTour de Carol but SNCF/Trainline don't seem to be interested in routing that way. I suppose I just need to go into a train station and ask at the ticket office next time I'm in France.
The direct line Paris-Barcelona doesnt have any night train.
If you rly want to travel by night, there are some other options with 1 to 3hrs layovers (usually early morning)