I hear across Europe a lot of previously axed sleeper services are being revived as there is an increasing market for them. People increasingly turning away from air travel for a multitude of reasons, environmental impact being one of them.
It would therefore seem against current trends if the UK▸ was to close any of its sleeper services, although I might be comparing apples with oranges. I wonder if recent impact on domestic aviation would have affected demand for long distance rail
I would very much agree that this might be exactly the time we see a change from sleepers fading out to sleeper making a return. And there are various suggestions I have seen, some of which make a lot of sense.
I just did some quick look-ups of potential and actual routes ...
Paris to Rome - 1400 km
London to Aberdeen - 880 km
Brussels to Madrid - 1600 km
Frankfurt to Stockolm - 1500 km
Plymouth to Inverness - 1000 km
Amsterdam to Vienna - 950 km
London to Penzance - 500 km
Hamburg to Warsaw - 850 km
Copenhagen to Ljubljana - 1400 km
Lisbon to Milan - 2000 km
and I'm noting that the European routes are typically longer (but, sure, I was a bit selective and didn't try Brussels to Amsterdam or Dublin to Belfast!)
I have used sleepers on occasion - strikes me as a very sensible way to leave home during the evening, sleep overnight and wake fresh for a day's work in Edinburgh or Motherwell. Similarly, finish a day's work, and sleep while I travel home.
Problem is - it really hasn't worked too well for me.
Northbound, a late afternoon / early evening train from Melksham (cannot risk the last train on a Sunday!) and then hanging around in the Sleeper Lounge at Euston. Up at some ungodly hour and decanted onto the platform at Motherwell; connecting train to Coatbridge with a couple of hours still to kill before the place I'm working opens.
Southbound - from a 6 p.m. finish in Edinburgh, do you realise how l-o-n-g it is until the sleeper leaves. Then in London, across to Paddington and train to Chippenham where (of course) there was no connection to Melksham and the bus goes from the other side of the town; great with heavy equipment.
There may be solutions - and I do recall a much longer sleeper journey from Southern Europe up to Paris, where the arrival was at least in the light. and we had a time to have a look around before crossing over to Gare du Nord for Eurostar.
I wonder - casual speculation - if the Cally Sleeper should run to / from Stirling (I think they could find a platform) with check in any time from 18:00 at both ends of the route, on board hot food and like a proper hotel. Rail transfer to "any connecting station in Scotland" included in the price, and perhaps a late joiner / early leaver stop at (!) Motherwell. Similarly, the South West service, available from 18:00 and to 08:00 at both Paddington and Plymouth.