Thanks for letting me know, Norah.  I just bought the game earlier today so I'm really new to it.  I have two families.  My first one is the one that I cannot seem to get to stay asleep, although I just started my second family tonight.  Really, I should be in bed, but I'm a Night Owl myself -- maybe that's the problem.  I should just turn the game off and maybe they will be fine tomorrow.  I hope so.