>>971544>Train Suite Shikishima and Twilight Express MizukazeOh didn't know about those. Looks like all the JR groups are making at least some seasonal overnight multi-day tourist trains then. At least that's something.
>>971553Just the nobinobi carpet things of uncomfort as mentioned since that's the one thing that's free with the JR pass, this is what it looked like. Just a piece of rough carpet velcro'd onto a wood/metal base.
Best advice is use the blanket they give you as a makeshift mattress since it's warm enough anyway, and your jacket or backpack or whatever as a pillow, welcome to hotel JR.
Honestly the reserved seats on the Hamanasu were actually a lot more comfortable, like la-z-boys or something they were.