Mature Writer seeks room

I am planning coming to Cambridge to undertake part of a project about graduate school life at the university. I did my PhD there in the mid 80’s and am returning to do some further research. I need a decent sized double room preferably town centre or Mill Rd area and cycling distance from the city such as in CB1 but would consider further out as I do drive. Peace and quiet would be the main criteria I’d appreciate and really nothing much else.