Well, we tried for a few weeks to get DS to sleep in his bed all night, which entailed one of us sitting with him in his room until he fell back asleep each time he woke up. He started waking up more and more and more,and none of us were getting any sleep. So last night we decided to to go back to what we were doing before, which was having him start the night in his room and then come to our bed later in the night. OMG it was great!!!
I guess he's just not ready yet. We'll try again in a couple of months. I really do worry about having enough space once my belly gets big. Last time, I used so many pillows around me there's no way we'd have room for all those pillows and a 2.5 year old in our queen bed.