Yes, Natalie can roll over, but she doesn't choose to do it very much. I wonder if she doesn't really realize how she does it the times that she has done it. She can go both ways - back to front and front to back. She also manages to move her body around/a distance when on her back. We place her down on one part of the carpet and she ends up in a different orientation or several inches from where she started.
And she also slept through the night one night! Of course, she hasn't repeated it since but there is hope. :) I am content if she wakes up just once; two times is a killer and I haven't figured out what triggers that.