sleepless in sacramento

i hate that i am not getting any sleep right now because i know it will only get worse. i mean, we still have 6 months to go, and then a newborn to contend with! but it's annoying now, because really for the first time in my life, i can't sleep through the night, and i'm so exhausted during the day. i am not sure if the exhaustion is because of my strange sleeping or just from being pregnant in general. this is what i am dealing with:

9 pm - oh so tired. get in bed and read a little or watch a little tv. fall asleep approximately 20 minutes later.
11-12 pm - brian comes to bed. i'm a very light sleeper now (i never used to be), so even though he is a gem and does his best not to wake me, he still does (no fault of his).
130 am - second wake-up. first bathroom trip, just in case. though i know it doesn't exactly help the waking-up-in-the-middle-of-the-night problem, i also drink about a half a cup of water. i'm parched when i wake up. go back to bed and lie there for 15 minutes trying to fall asleep again and feeling wide awake.
330 am - third awakening. second bathroom trip and small drink (parched again). go back to bed and lie there for another 15 minutes trying to fall asleep.
5 am - fourth awakening. third bathroom trip (just in case) and a tiny drink. go back to bed and lay there. doze very lightly until alarm goes off.
615 am - alarm goes off. get up, even though i'm exhausted, because i've been laying there basically awake for the last hour.

if i'm lucky and it's the weekend, i get up (no alarm), have breakfast, and read the paper - and then go back to bed till about 8 am or so. i also get to take a nap sometime after lunch. on workdays of course this is just not possible so i'm just tired and fall asleep earlier than usual at night.