Our 2 yr old still comes in, and like your DS is usually stealthy enough for us not to notice until the next morning haha. We've had a rough few nights of her tossing and turning and carrying on at 3am, but we've also been sick with the flu lately so I'm allowing for that for a time.

I was going to suggest putting him back in his bed, but as I read more of your post, realised you have already tried this. Would he sleep on a mattress on the floor in your room?

Maybe it's time to wean him from the dummies. They might be causing him to wake up in the first place as well as the nuisance they're causing you guys.

I don't really have any other suggestions. We're still just going with the flow ourselves at the moment. DS eventually just started sleeping right through in his own bed and climbs in with us in the morning. Still waiting for DD to sleep right through. Maybe I need to take my own advice about the dummy LOL and get rid of it. Who knows.

Hope you can get back to more restful sleep soon!