What do you mean by hard seat, soft seat, hard sleeper and soft sleeper in the train?

Hard seat refers to a train seat, which is made of hard but elastic material.

Soft seats are also train seats, but the padding is thicker and more comfortable.

Hard sleeper refers to a sleeper where the train can lie down. Like a hard seat, it is smooth, but elastic and comfortable. It's an upper berth, a middle berth and a lower berth.

Soft sleeper is also a sleeper where the train can lie. There are ordinary soft sleeper and advanced soft sleeper. Ordinary soft sleeper 4 people in a box, senior soft sleeper 2 people in a box. Divided into upper berth and lower berth, the facilities are comfortable.