You do have to be very gentle with the abduction exercises, NTO! They have cut into and shifted the muscles over the joint, then put them back so they are quite weak. My physio warned me that I must not work the hip as hard as I had worked the knee. Amazing, though, what you will be able to do after six weeks, I promise you.
Sympathies with the sleeping! I had, with both TKR and THR, at least a week of needing to wee every two hours, which was a nightmare. I can now sleep on the non operated side, but am cautious with the other one. But sleeping like a baby. Apart from the usual 3.30 wee, that is. 