The sleeping cars in the Optima Express trains are 1st class passenger cars with sleeping beds and air conditioning.

These sleeping cars are equipped with 10 compartments.

Each compartment has two beds for adults, one bed for a child up to 12 years old and a sink with water. During the day the compartments offer seats and at night bunk beds. All compartments can be locked from the inside. The toilets with hand wash basins are located at both ends of the sleeping car.

In the sleeping car it is possible to book an occupancy of one to two adults and one child up to 12 years of age per compartment.