Good morning,
I can't help but respond to your challenges about sleeping. My tkr was done March 31st of last year and it was mid-May before I actually slept in my bed. Oh, I tried, night after night, but couldn't get comfortable and was usually up within an hour, settling into my man's huge recliner. Sometimes I slept for a few hours, sometimes a few minutes, then haunted the house walking around with my walker, wandering int my scrapbook room at 2:00 AM. I decided to start a project and by the end of six weeks I had made more than 30 "happy" greeting cards which we took to an assisted living facility later. The first night I went to bed AND STAYED until daylight was the day I realized I might recover from this assault on my knee. It still took until January 31st of this year before I could truthfully say to myself, "I'm glad I had the surgery." By this time my hip had started hurting and had been diagnosed as bone-on-bone with arthritis, so I get to look forward to new surgery on April 27th.
The one thing about which I am determined is that I refuse to live with pain if it can be eliminated. I will not be dependent on aspirin or canes or walkers if there is a remedy. In spite of having had polio as a baby and always walking "funny," I did so without pain until my knee started hurting two years before it was replaced. I made a pact with myself to not someday say, "I wish I had done that (surgery) years sooner than I did." Life is too short and I have to many things to accomplish during my remaining years.
Bottom line, sleep is vital, but the pattern probably changes for most people after surgery and it's one more thing of which to be made aware ahead of time (I wasn't). But, our bodies adjust for the time being and before long we can return to normal and sleep throughout the night.