What is sleep?

Ok, so I have one last prayer request and that would be for SLEEP! What is sleep you ask? When you sleep through the night for at least 4-8 hours depending on what kind of sleeper you are (and if you have children and they don't wake you up). BUT I the past 3 nights have averaged around 1 to 1 1/2 hours of sleep a night-not normal at all. Tonight I don't even know if it could add up to an hour. Also that I don't get sick, because when I don't get a lot of sleep is when I tend to get those rotten colds :( Well I am going to go try do something that will make me tired. Hopefully I will get a few hours in :)