Early morning cafes

I am coming to Manchester next weekend. I could not find a train from Glasgow without going via Newcastle and York at a very high price. I assume that there must be engineering works on the West Coast Main Line.

So I booked on National Express. The problem is that it arrives at around 4:00AM on Saturday morning.

I need to find a cafe that is open at an unearthly hour for breakfast and a few pots of tea. Has anyone got a recommendation?