I slept like a rock all night every night during my first trimester. Now as soon as I enter trimester number 2 I can't get comfortable. I'm trying to train myself to not sleep on my back anymore, but that seems to be the only place that I feel comfortable. When I lay on my sides they start to ache and I just toss and turn all night. Haven't had a good night sleep this whole week. Any ladies out there with this same problem that I can commiserate with?