Best sleeping and sitting positions after hip replacement surgery?

Sleeping & sitting: It depends on the timing after surgery. Also the type of surgical approach that was used. If you are at least 6 weeks out from surgery you should be able to sit or sleep in any position that you desire. If you are in the immediate post op period, that is less than 6 weeks, these positions would be determined by the surgical approach. You should talk with your surgeon to determine the approach.