A.R.
I have a tempurpedic cloud supreme, which is the newest one on the market. I got it this past April because I am also pregnant and was so uncomfortable in bed and having a lot of shoulder pain from sleeping on my side. It is a big change to go from a spring mattress to a memory foam and takes some getting used to, but I love it now. I was also worried about getting hot, but it has not been a problem for us, but we do have a ceiling fan that we sleep with. We really love the cloud supreme and I would recommend it...there is a 30 day trial period that you can return the bed too. I have also heard good things about the sleep number bed. Good luck with your decision!!