My oldest son used to come into our bed EVERY night , sometimes his younger brother used to wake up when he heard him moving and we'd end up with BOTH of them in our bed! I used to console myself with the fact that he wouldn't still be doing it when he was 16! He started growing out of it when he was 10, and very quickly stopped coming in at all, though his younger brother still sleeps in my bed when Mr Spudqueen is away on business, and he's 11 now! We bought a kingsize bed and used to make the kids laugh with a book called 'The Biggest Bed in the World'. Personally I didn't find it too much of a problem, I think it's nice that for a child the safest place in the world is inbetween their parents in the parents bed!