T.B.
I am going through this with my 4 year old twins! Most of the time, they sneak in so quietly, that I do not know that they are getting in bed! (We have a king size bed too--so lots of room.) I had been without sleep for TOO long dealing with infant twins that I am now enjoying my sleep too much to deal with it, so for the most part, I let it go. Lately, we've been discussing with them how big boys sleep in their beds, and that we'd love to suggle with them in the morning when the sun comes up. It's been working so/so. Last night they BOTH slept in their beds all night--one came in at 6:00 and the other shortly after. The sun is their o.k. sign. I heard one mom tell me that she puts a small lamp on a timer and when the light comes on, it's o.k. to come in. I have also been thinking about implementing rewards--like maybe cherries on top of their pancakes for breakfast or something else they like to help inspire them.
Good luck!
T.