Fortunately my kids were pretty well grown, 14 and 12, when I took the hobby up again. Now the only issue I have with them is when they roll their eyes at me when I bring home some new model. On the other hand I've got the older one trained enough to give me gift certificates at hobby or book stores.
As for sleeping through the night I have to warn you, this can take a while. My oldest slept through the night her 2nd night home, the youngest didn't until she was nearly TWO years old. If she had been born first I'd have given myself a vasectomy rather than go through it again.

I wouldn't change either of them now, but it was touch and go there for a while.
Just remember the old adage that every parent well knows, Children are God's way of telling you you've had enough sleep in your life.