Sleep... sleep... I know that I'm only dreaming...

The past couple of nights, I've gotten maybe a couple hours of sleep at most each night. I'm just having problems falling asleep. I move out to the living room couch to toss and turn so that I won't wake Colleen up and disturb her sleep. I know she needs the rest.
I am so wasted right now. The drive to work seems like it takes forever. I make it in here for around 7am every morning, wondering how the hell I manage to do it.
I told myself yesterday that when I got home yesterday, I would have a nap. No go. I'm going to do the same thing today after I stop at WalMart on the way home, and hopefully I'll get a snooze in. I plan on picking up some Sominex or something similar to help me.
I do find some time to zone out from time to time, but nothing truly refreshing. I just manage to cut the world out for a couple of minutes.
I'm hoping to get some decent sleep tonight. If I don't, I'm going to end up going bats, I know it...