What ever your doctor suggest for your hip replacement.. I had a posterior hip replacement four months ago, and in four more weeks I will have my left hip joint replaced. Luckily, I had very little if any pain, that Tylenol would take care of and now four months later I still have no pain. It’s best to follow doctors directions. Mine said walk 100 feet a day for the first week then twice a day at 100 feet for the second week and so on. It’s very important not to overdo, or you will feel it. I did sleep a lot the first two weeks, only getting up, going to the bathroom and eating in bed and the rest of the time I slept. But then I am probably a lot older than you, I’m 86 years old so maybe that’s why I slept a lot. All that resting I feel helped in the healing process, my right hip now that Had the hip replacement is strong, and doing well and so far no pain. Also do the exercises that are given to you by the therapist. Good luck and take care!