For long, Sutton Hoo was in private hands, but in 1998 it was given to the National Trust. A Visitor Centre has been opened, and visitors are now welcome. It is situated off the B10832 road, two miles east of Woodbridge [TM288487]. Here is a short guide to what you may see on your visit.
Click here for the official National Trust web site, with the opening hours.
(Note there is a charge for entering the car park. Opening hours are restricted: it closes at 5 in the summer, and is only open at weekends in the winter. However it is, (I believe) possible to walk round the site even when the Visitor Centre is closed).
Click here for the web pages of the Sutton Hoo society who occasionally conduct excellent guided tours of the site.