detail info on...luxurious soft sleeper, soft sleeper, hard sleeper, soft seat, etc

There are too many types of them and I can't post pictures here.
Generally, Luxurious soft sleeper is a box with two bunks (upper and lower)and a washroom;
soft sleeper is a box with 4 bunks(two upper bunks and two lower bucks);
hard sleeper is a quasi-box(without a door) with 6 bunks(two upper, two middle and two lower bunks)
soft seat has 4 seats per row
hard seat has 5 seat per row