I just had a look at one online and judging by the pic its seems like she would still haul herself either on top of it or around it. She refuses to stay on her back so I would be worried that it would just distress her even more. She wiggles all over the place and quite often ends up with her feet where her head is meant to be and I figure that if she is strong enough to lift her head up and roll all over the place like she does then she will be fine. Maybe I should have started using one when she was a little bub and she would be used to it now!