When doing my military service (sweden) I got rides on SJ's night trains plenty of times in their six bunk cabins. With five other enlisted. I didn't mind it but it was Spartan. Simple and serviceable. And you felt the ride. If I had young kids with me I would get a private two or three bunk cabin.

But I still remember waking up in the mornings, leaving the cabin to head out into the corridor to open a window and inhale the fresh northern air.