I was in Westwood last year. There are big rooms and big kitchens, with many people sharing one kitchen. Your nearest supermarket will be Tesco, which is open 24 hours except on sundays, when it's open till 4pm. The accommodation is a 10/15 minute walk from the science department. There's a place called the Learning Grid which is close to Westwood. This is a place a bit like the library except it's smaller, you can talk and they have the main books for courses available for reference only.