Sleep or lack thereof

It is 11:30 at night and here I am still wide awake. Since Thing 2's birth I haven't been able to get to sleep. The funny part is that it has nothing to do with Thing 2  She sleeps better then I do. The other night I was wide awake and went to the grocery store at 2 in the morning sans children. (Yes, B was home. In fact, Thing 2 did wake up and I scared him because he couldn't find me and the car was gone. I'm not known to go places that late at night)

Even when I am dead tired I just lie in bed for hours wishing I could sleep. Sometimes I think I should get up and do something, like laundry or dishes, but seriously who wants to do them at midnight. 

The hardest part is come morning, after I have finally fallen asleep and had maybe a good three or four hours of sleep and then Thing 1 wakes up and is rearing to go and talks so loud that she wakes Thing 2 up and then I have to get up because I cannot sleep with her chattering. I love to hear her though. Sometimes I am lucky and Thing 1 sleeps in and I wake up on my own, but even then I wake up around a quarter to 7. 

If I knew there was no chance of needing to get up with Thing 2 during the night I'd take a light sleeping pill, but the last thing I want is to be doped up and her need me. 

My body is starting to adjust to very little sleep. At least I think it is, but maybe I am missing somethings and I don't even realize it.