My doctor told me it was safe to take a benedryl before bedtime. I would ask your doctor about it.
I found it more comfortable to sleep if I put a small pillow between my.legs. Im 35 weeks and cant sleep not turn (hurts me) in the bed, complete nightmare
Go on YouTube and search sleep music listen to any of those. I was having heaps of trouble and waking up constantly I have been listening to that music for a week tabby woken up in the middle of the night since