197 Starts one day, next day nothing!

Hi there as the titles suggest I've been having trouble with my Clio recently where I've come to start it and nothing i can here the fuel pump run but nothing, however when i try it the next morning its starts up fine (bit of a cough but i'm guessing that's the excess fuel sat in the engine) don't know if the temperature is a factor but to me its sounds like somethings loose. I got the car back in April had it about 3 weeks when it developed a problem i went to start it one day and it turned over but wouldn't fire up, turned out it was the crank sensor but I've already checked that again, was wondering if anyone has had a similar issue with this and if its an easy fix.

Much appreciated

Edit* its a 2008 model if that's relevant