STRIKES threatening to halt Scotland’s iconic sleeper trains could be avoided thanks to a significant breakthrough in negotiations, the Morning Star can exclusively reveal today.

Guards and stewards on the Caledonian Sleeper, which is run by outsourcing giant Serco, have overwhelmingly voted to strike over a myriad of workload concerns.

Rail union RMT said workers have suffered stress and mental ill health since the start of the troubled introduction of shiny new mark V carriages.