ZSSK unveils refurbished ex-DB double-deck sleeper

Slovak state operator ZSSK has unveiled a refurbished ex-DB double-deck sleeping car, debuting a new generation of overnight comfort as Central Europe’s night train market continues to expand.

From German heritage stock to new Slovak night flagship

The refurbished coach, presented at the Rail Business Days 2026 fair in Ostrava, originated as a German Rail (DB) double-deck sleeper built in the 1990s. Publicly available information shows that ZSSK has opted to modernise these second-hand vehicles rather than procure entirely new rolling stock, aiming to accelerate delivery times and control project costs.

Reports from Central European railway media indicate that the upgraded car represents the prototype for a broader fleet renewal of ZSSK’s night services, many of which currently rely on ageing single-deck sleeping and couchette coaches. The operator has frequently highlighted the need to increase comfort and capacity on key overnight routes linking Slovakia with neighbouring countries.

According to published coverage of the Ostrava event, the double-deck sleeper is intended for use on international services, with the Prague corridor repeatedly mentioned as an early deployment candidate. The two-level concept allows ZSSK to fit more berths within a comparable train length, a factor that is viewed as increasingly important as demand for night travel returns on busy cross-border corridors.

The decision to refurbish ex-DB stock aligns with a broader European pattern in which operators are extending the life of proven vehicles through deep modernisations. Observers suggest this approach allows ZSSK to bring a modern product to market relatively quickly while longer-term investment plans in entirely new night train sets are still being prepared.

Interior redesign targets privacy and hotel-style comfort

Photography and technical descriptions shared by specialist railway outlets show that the interior has been largely stripped back and rebuilt. Traditional six-berth couchette-style compartments have been replaced by a layout dominated by one-, two- and three-berth cabins, reflecting a shift toward greater privacy and higher-yield accommodation categories.

The refit introduces en-suite facilities in selected compartments, with showers and private toilets designed to bring the product closer to contemporary hotel standards. Across all classes, cabins feature new bedding, modern lighting with individual controls, upgraded climate systems and improved sound insulation intended to reduce noise from both the track and adjacent compartments.

Accessibility has been a particular focus of the redesign. Information released about the project points to wider doors, adapted circulation areas on the entry level and at least one compartment engineered to accommodate passengers with reduced mobility, consistent with current European interoperability and accessibility standards.

Digital enhancements are also central to the upgrade. Reports describe the inclusion of power outlets and USB charging points at each berth, on-board Wi-Fi and an updated passenger information system. The combination is intended to appeal both to leisure travellers and to business passengers who increasingly expect connectivity throughout an overnight journey.

Technical upgrades behind the modernisation

Alongside cabin comfort, the ex-DB coach has undergone a comprehensive technical overhaul. Industry articles note that the refurbishment covers the car body, running gear and braking system, with work aimed at extending service life and ensuring compliance with current safety requirements for international operation.

The modernisation reportedly includes new or upgraded HVAC equipment sized to handle the higher insulation levels and compartment density of the double-deck design. Fire safety systems have been enhanced with revised materials and updated detection and suppression technologies in line with stricter European rules for enclosed passenger spaces.

Energy efficiency has also been part of the brief. Analysts observing the project point to the adoption of LED lighting, improved control of heating and cooling and more efficient auxiliary systems, all of which are expected to reduce power consumption compared with the original DB configuration.

While detailed technical specifications have not been widely released, coverage in specialist railway publications indicates that the car is configured for operation at typical Central European mainline speeds, making it suitable for overnight services on key Slovak and cross-border axes. The double-deck architecture is seen as a way of maximising capacity within these existing speed and route constraints.

Part of a wider strategy to renew Slovakia’s night trains

The refurbished double-deck sleeper forms part of a broader refresh of ZSSK’s rolling stock portfolio. In recent years the company has invested in new regional electric units and ordered additional Stadler KISS double-deck trains for daytime intercity use, while separately signalling its intention to overhaul its night train offer.

Recent reports on ZSSK’s strategy describe night services as a key pillar of its long-distance network, particularly during peak holiday seasons and on routes linking Slovakia with the Czech Republic and other neighbours. The new sleeper car is presented as a visible symbol of this renewed commitment to overnight rail at a time when environmental and congestion concerns are pushing more travellers to reconsider rail options.

Funding for the wider fleet programme reportedly combines national resources with European support mechanisms, reflecting the European Union’s broader policy goal of strengthening cross-border rail. The use of refurbished stock for the sleeper project is viewed as a way to stretch these funds while still delivering a product that can compete with contemporary offerings elsewhere in Europe.

Industry commentary suggests that the double-deck sleeper may also help ZSSK experiment with new service concepts, such as premium compartments tailored to couples or solo travellers and flexible family spaces. The modular nature of the refitted interiors would in principle allow the operator to adjust the cabin mix in response to demand patterns over the coming years.

Timeline to service and implications for travellers

Published coverage from the Ostrava unveiling indicates that ZSSK aims to introduce the first refurbished double-deck sleepers into regular service in 2026, following testing, certification and staff training. The prototype coach will serve as a reference for subsequent vehicles, with further units expected to follow if the concept proves successful.

For passengers, the arrival of the upgraded sleeper is likely to bring a noticeable jump in comfort on selected night trains, particularly on international routes where competition from other rail operators and low-cost airlines is strongest. Observers expect the modernised cars to be promoted as a flagship product within ZSSK’s overnight portfolio once they enter the timetable.

Travel industry analysts argue that such investments in night trains can support broader tourism strategies by making it easier to combine city-break style itineraries across Central Europe without sacrificing daytime sightseeing time. By departing in the evening and arriving in major cities the following morning, travellers gain an extra day at their destination while avoiding airport transfers and security queues.

The refurbished ex-DB double-deck sleeping car is therefore being watched closely by both rail enthusiasts and industry professionals as a test case for how mid-sized national operators can renew night train services. Its performance in service and passenger reception over the next few years are expected to influence future decisions on the scale and shape of Slovakia’s overnight rail fleet.