I was in treatment and family night with kids was just so they could visit. It is not to use them in any way. Please don't worry about that. Kids need their Mommy and Mommies need their kids.
I had problems sleeping and still do with a couple days shy of 8 mths. In the beginning I couldn't even close my eyes, but that does go away. Now I wake up about every 3-4 hrs. I think its just an age thing, or at least I'm telling myself that. You have alot on your plate right now, so give yourself a break.
I can tell you one thing, when I was in treatment, one of the things that helped me was when my family came and the hugs and kisses I received. What a joy it was!!!!