Can't sleep!

I'm soooo tired. I'm exactly 17 weeks today and can not sleep to save my dang life, uhhgggg! My husband bought me the snoogle pillow 2 days ago and it helps me get comfortable but I just can't sleep. I find that although I may not wake all the way up, I still wake enough to have thoughts, hear things, and remember laying in a daze in bed. Last night I probably slept about 4hrs total even though I was in bed for a little more than 9. I work full time and drive to see clients and the traffic is horrible so being distracted because I'm tired really scares me! Do any of you ladies have any hints on how to get a better nights sleep?