Sleep, I need sleep!

In a marathon, runners say you hit a point call the "wall." You are so tired and exhausted that you don't want to go on. Well I have hit that point in lack of sleep. Over the last week, I can almost count the hours I slept on my fingers and toes. Everything has made me hit that wall. To start off, I had a 5-6 page paper in my film class due, a math test to prepare for. Both of these due in a day of each other. When I have school work due, I work so hard on my homework, I dream about it! Making sleep obsolete and my night really long. On top of that my children cant figure out that night time is for sleeping. McKinley is almost 2 years old and still wakes up in the middle of the night to get a refill on her sippie cup. Then wants to have mommy tuck her back in and sing to her. I have gotten up to take care of that, and everyone knows trying to explain my mommy will not be coming in or explaining anything to a 2 year old is impossible. Then my little boy Taitan who is 7 months old, cant figure out how to sleep at all during the night. He still gets up 2-3 times a night. He was sleeping good in the front room by himself but Alicen disliked the pen set up and so he moved back to the room. No sleep again!
Then over the last week, Alicen has had a major migraine headache. Making her pretty much immovable. We cant seem to figure out what is wrong with her. But she is just in a lot of pain and she cant get to sleep at all.
Since I am such a light sleeper anyway, when Alicen is sick I am awake with her, (key note: Alicen is not quite when everyone else is asleep. Especially when sick). So lately I have been up for Taitan's fits, McKinley needing something, Alicen being so ill. Then not forgetting the sirens of police and fire trucks running up and down 9Th west, my cat chasing something in the house, neighbors getting home late or leaving early. I really am get exhausted. I now know and see why when my Dad sits down or lays down some where he is out in like 30 seconds flat. Life is exhausting I have come to find out. It don't look like its going to lighten up any time soon either.