S.B.
by now you have taught him that he can get out of his bed and into yours and that's ok. You need to tell him before bed that he needs to stay in his own bed, that's where he sleeps, mommy and daddy sleep in their bed. Then if he gets out, put him right back in his own bed. Otherwise, he'll always come into yours. We have a gate in front of our dd's door, so even if she wanted, she'd have to stay in her room. good luck!