Not-So-Relaxing Sleep

My pregnancy book, Sears Parenting Library's The Pregnancy Book, told me that pregnant women spend more time in REM sleep and consequently are more likely to dream and more likely to wake up and remember the dreams. I've found this to be very true. The night before last, I had an incredibly vivid dream in which Sasha and Malia Obama had been kidnapped, and I couldn't locate them, although locating them seemed to be my job.

A few days before that, I woke up at 5:30 in the morning having dreamed that I had taken my baby to services on a Shabbat morning and put him (yes, we had a boy in the dream) in a baby playground swing. Then I went inside for services, totally forgetting about the baby until several hours later, when I was ready to walk to lunch. In the dream, I panicked as I remembered the baby and rushed toward the baby swing. I could see that his little body was there in its little blue sleeper, but before I could tell if he was okay, I woke up screaming.

Did any other women out there have unusually vivid dreams while pregnant?