My daughter slept a good 5-7 hrs. from 1-month and any troubles we had later were quelched by little bit of modified cry-it-out with comforting. She then slept 12 hrs. and took a 3 hour nap for nearly 2 yrs (we were spoiled). Now she's 2 3/4 yrs old and our son is 8 mo. He's gone from being in a Pac n Play - our bed combo, to now starting out in his crib in their shared room and ending up in our bed by morning. He is an insanely light sleeper, goes to bed around 8, wakes up at 10, 1, 3, 5 etc. He is still nursing and luckily our daughter sleeps through most of it - at least I think she's sleeping. I hate saying to her, "he might cry for a bit but he'll settle down in just a few minutes, so please just stay in bed." So most of the time he ends up in ours and I think we're all waking each other up. He does not like the Pac n Play any longer.
I haven't had more than than 2 hrs.straight sleep in 8 mo. and not 8 hrs. for the past couple years.
I'd really just like to hear about anyone else who has small children sharing bedrooms: What worked, what didn't, etc.
Maybe I'm just crazy that some day this might work and I should just go take out that loan to add on another bedroom (this is in the 5-10 yr. plan ($$)).