edit-
Up sleepers were indeed cancelled.
Sunday night off Penzance (it was actually going to be starting at Plymouth at 0030 Monday morning), Monday morning arrival in London.
There is no other train showing and no arrivals into paddington until the 0900 (0553 off plymouth), I am not saying it didnt run and the fact it isnt in the system doesnt mean much either, so there you go it ran in a schedule that was not put in the system.
Neither the up nor the down schedules for the sleepers were put in the system last night, but they did both run.