What makes a train journey difficult?
Changes
Platform changes, limited buffers and luggage interrupt rest and add uncertainty.
Timing
Very early starts and overnight travel can cost useful sleep even when the train is comfortable.
Comfort
Seating, privacy, crowding and luggage matter more as the journey becomes longer.
The result is a planning estimate. Check the operator’s current timetable, disruption information, accessibility guidance and official connection advice before travelling.