Fond memories of rattling up the WCML on the cushions, in a corridor MK1 on a sleeper/seated services on a Friday night in the 70's. Bailing out at Crewe in the early hours and watching the Friday night/Saturday morning Holiday extras to the West Country pulling into Crewe, and watching the mad rush to the 24 Hours Travellers Fare Emporium on the Platform. Then off to the Cambrian Coast on the overnight York Aberystwyth, or down the Welsh Marshes on the early morning services to Cardiff, or change at Shrewsbury for the stupid o'clock Central Wales service.
You could more often than not be lucky to get a compartment all to yourself on a Manchester/Liverpool or Glasgow sleeper/seated service (on a Friday night as well). I'm sure I wasn't the only one who would turn the lights to dim (there was a switch in the compartment), pull all the blinds down and then take the bulbs out of the fittings, place them on the overhead luggage netting and crash, (not forgetting to put the bulbs back on arrival)
Travelled on many an overnight sleeper/seated service in the 70's/early 80's. (London to Leeds, Newcastle, Edinburgh, Glasgow, Perth, Aberdeen, Inverness, Fort William, Manchester, Penzance. Glasgow to Inverness. Glasgow to Bristol), plus a few overnight seated only. (Bristol to Milford Haven, Crewe to Aberystwyth, Manchester to Cleethorpes, Glasgow to Oban and Crewe to Cardiff). Train travel was much more fun in those days!