I've never slept well during pregnancy. Right about when my children started sleeping through the night, I became pregnant again. Zari was 21 months old and Dio, who slept through the night earlier, was around 13 months when this happened. Almost as soon as I'm pregnant, I start waking 4-6 times every night to pee. It's crazy, and I have no idea where all of the fluid is coming from. I only let myself have a small sip of water when I wake up at night, even though I'm thirsty enough to drink a cup or two each time I wake up. This frequent waking usually lasts through the first trimester.
A few weeks ago, I started waking up only 2-3 times a night to use the bathroom and it felt heavenly. But I think it will be short-lived. I'm a back sleeper, but I've started to feel a bit dizzy when I lie down on my back, so I've tried sleeping on my side. I know that as my belly gets bigger, I'll have to switch over entirely to side-sleeping. I dread it. Even though I have really thick memory foam topper, my bottom hip starts to ache and I spend the whole night flip-flopping from one side to another, sometimes every 30 minutes. This is one of my least favorite things about the third trimester.
I've tried just about every combination of pillows I can imagine--rolled up behind my back, between my knees, underneath my belly. I even tried sleeping with my bottom leg extended, my top leg bent, and my body rolled over slightly towards my stomach, like in the illustration. Still, nothing helps me sleep well when I'm on my side. And the night-time bathroom trips will increase in frequency again as my baby nears full-term.
It's just not fair! 9 months of sleep deprivation does NOT prepare you for a newborn's waking patterns (something I've heard before). Being tired doesn't help you cope with or "be ready for" fatigue! I wish there were a magic anti-gravity mattress topper so I could sleep without aching hips and constant flip-flopping. Until then, I'm open to other suggestions...