Looking for a base when working away.

I live in Wales but work in Rugby/Daventry. i am looking to set up a location where i can sleep during my working days. i work 12 hour shifts 14 days a month, on my days off i travel back home to Wales. i am looking to reduce my travel costs and current residential costs by moving closer to my place of work. as i will hardly be at the property i am looking for a reasonable fee per month considering i am only there half of the month. thanks, Thomas