The night trains are great. It's quite comfortable, you get there in the morning allowing for a full day (after dropping off your bags at the hotel) of work/tourism, and I especially hope Nightjet and other night train companies converts all of their trains to the modern mini cabins[0].

They're incredible.

[0]: https://www.seat61.com/trains-and-routes/nightjet-new-genera...

Comfortable and comfortable. It's certainly much better than spending a night on a seat. But most people won't sleep well. It's noisy and either too hot or too cold. The bed is hard, narrow and often too short for tall people.

I have spent many nights on trains in various countries, seats, floor and berth. I will prefer a couchette or sleeper if the price is somewhat reasonable. But I won't live in the expectation to get something comfortable. Just less uncomfortable.

Doesn't work for all of us. I can peacefully fall asleep from the noise of a CFM on an Airbus. On a train, rickety being chucked around all the time and always too hot, nope.

I can do 10h on a plane fine. 3h on a train does me in every time.

I can't sleep in a seat, which rules out aircraft for any reasonable carbon or dollar price.

At least on trains I have a chance. Googling how the climate controlled worked before my previous trip helped, but that followed a hot journey.

Night ferrys and night trains are my favourite way of travelling when on vacation.

Unfortunately more expensive than a plane+hotel and has to be booked well in advance. It's worth the experience, at least for me, but it's not a real alternative.

When I click on a date on that website, e.g. 16.01. I see tickets for 69.90€ on the coach wagon from Berlin to Paris.

When you said night train you can sleep on I assumed sleeper cars. But to be fair, I always looked at trains to/from Vienna, maybe that's the exception in prices.

Coach is a sleeper car, you just share the cabin with up to 5 people on bunk beds. Although on newer carriages (which I think is the one that goes to Paris) those are sleeping capsules where you have more privacy.

I took the trip to Vienna in one of the old bunk bed cars for 60€ and it was fine. I liked the experience of chatting with the fellow passengers in the cabin that you usually don’t have on a normal train ride.