There was the proposed Nightstar service but that was cancelled in 1997. There's been a decrease in sleeper services across Europe in the past 10-20 years as well, which is a pity. People seem to prefer to fly.
We've just booked the Thello sleeper from Milan to Paris for 304 euros (152 euros each). It takes about eleven hours. You have to accept that this is a minority interest.
Over the years I've taken sleeper trains from Paris to Venice, from Milan to Barcelona, from Boulogne to Perpignan, from Cologne to Hoek and up and down the UK. (Oh, and Vladivostok to Moscow, Leningrad and Helsinki, and, then again, Montreal to Vancouver). They're wonderful, but, one by one, european sleeper services are closing as daytime services speed up - I believe that there are now none in Germany.
The standout exception is that the sleeper to Scotland has come down in price and you can book twelve months in advance. I cannot recommend the service to Inverness highly enough.
As for cross-London links - those left wing conspirators who joined Transport 2000 (an offshoot of Homes Before Roads) in the early 70s and campaigned for the re-opening of the Snow Hill Tunnel were told it would never happen. We can now look at the Thameslink service and the regeneration of 'Midtown' with something approaching satisfaction.
