Hi Susan,
There is a hip dysplasia support thread if you scroll down the main page a bit. I'm sorry to hear youre having such a hard time of it all. I wish i could give you advice on the sleeping issue, but my little one is only 8 weeks old, and only sleeps for 4 hours max with the pavlik harness on, but i dont think it means anything coz shes so young> Sorry.
Come join us
cheers
melissa