K.S.
Its hard. If you have room i'd get a separate little bed for your room.(if you can't fit a bed a few huge comforters will work) Start them in there beds and let them know they can go to that bed if they get scared at night. Regardless of what they say we always put a disney movie on in there room at bed time. Mine loved the Fox and the Hound. If they wake up at night they know that they can go in your room if they are scared but need to go in the separate bed. Night time is sooo scary for them and they are use to having you with them to keep them safe. this will help them by not pulling them away cold turkey and also gives you a break cause there is just no room in a bed with two kids.