Sleep or not to sleep?

AAACK!  Someone help me!?!?!?!   I'm starting to get my days and nights mixed up.  It takes me back to the newborn days of Allison's life.   She was awake overnight.   For awhile now, I seem to be staying up later and later, or, as tonight and Monday night, I went to bed early enough, but then I wake up at 2:00 and I'm up for awhile.  I'm not one to necessarily go watch TV...that feels like not doing anything.  I feel that I need to "do" something.  I know that is the wrong way to think.  In fact, things I have read point to that being a huge part of the problem.  I try to do things that ultimately stimulate me instead of trying to relax myself in order to back to sleep.  Much easier said than done.  The main problem with this whole situation is the fact that come about 1:00 or so then I am EXHAUSTED and cannot keep my eyes open...:(    I know, I know, .... I am headed back to bed again, after I save and publish this post.