There currently are a variety of options to travel by night train from Berlin (Germany) to Linköping (Sweden), taking between approximately 13 and 16 hours: Namely the EN 344 and the 10300. These lines are operated by RDC and Snälltåget.
RDC Euronight is a night train operated by RDC Deutschland connecting Berlin with Stockholm via Hamburg and Copenhagen, running three times a week in each direction.
Two sleeping car categories are available on board. The 1st class sleeper offers private compartments for up to three people with a private bathroom including shower and toilet; breakfast is included. The 2nd class sleeper has two-person compartments with a private washbasin and corridor toilets. These can be reserved privately or shared with other passengers in mixed or women-only compartments.
The couchette car has compartments for up to six people, bookable as a private compartment or as individual berths. Each berth includes a pillow, sheet, and blanket. Seats convert into berths for the night. Washrooms and toilets are available in the car.
As the most economical choice, the seating car offers compartments for up to six people and open-plan seating. Each seat comes with a power socket and an included reservation. Toilets can be found in the vestibules at the end of the car.
Passengers in sleeping car compartments — both 1st and 2nd class — receive breakfast delivered to their compartment. Couchette and seating car passengers are not provided with breakfast.
Snälltåget offers night travel with various comfort levels on night trains between European cities.
Snälltåget provides three options: budget seats in open coaches, berths in shared compartments for up to six people, and private compartments for groups. All berths include pillows, sheets, blankets and duvets.
Both shared and private compartments transform from day seating configuration to night bed mode. With three berths per side and ladder access to upper berths, private compartments offer the best option for groups.
Animals are permitted in private compartments only. Bikes are not allowed, but collapsible bicycles can be transported as hand luggage or stored on luggage racks.