Sleep is over rated...

So for about the past oh, like week, I literally cannot sleep! Last night I am still awake at 3:30am knowing that within a few hours the kiddos will be up and the morning chaos starts! So the real problem is that I can't seem to turn my brain off. It's a problem I inherited from my Mom! Maybe the fact that we just put in an offer on a house that we love has something to do with it as well. And we are dying to know if we are going to get it! :) So it's those situations in my life that arise and then my sleep goes out the window! So I'm turning to my oh so avid readers for answers. Please give me any suggestions you have or ideas you have that would help me to resolve my issue with sleeping. I just don't function well on no sleep so it's bad for those who have to live with me.