UK Honeymoon hotels????

Hi all, I'm getting married on November 16th and we are honeymoon-ing next year with our 3yr old but we want a couple of nights on our own after the wedding. We're in Manchester and ideally only want to travel for a couple of hours max.we want somewhere really romantic but not dated and ideally only want to spend £250 b&bIve trawled the internet but can't find what I'm looking for!! Please help! X