I wish you luck and hope all goes well. Wanted to add that the PT experience can vary tremendously from therapist to therapist (and of course depending on the patient). I had 3 home PT visits, and on day 12 after surgery I went to outpatient PT. I had worked with this particular group before with other rehab, and they trusted me enough to do all that was asked of me. They never tried to force the knee into painful positions, and I usually went there every 7 to 10 days to check on progress, and add progressively harder exercises. In the beginning you can expect to do 3 sets of 20 to 25 minutes of exercises at home, and with 20 minutes of icing afterwards it does take some time. After roughly 8 weeks I reduced it to 2 times daily. Now (4 months) just some stretching, otherwise walking, swimming, recumbent bike etc. As far as sleep and pain is concerned: yes, I will impact you. I found that if I iced the knee just before going to sleep and took 2 Tylenol it let me fall asleep ok. Not always stay asleep, but that happens - sorry!