I'm a couple of days past the 5 week mark. I'm still sleeping pitifully. Last night was typical. 2 tylenol pm half an hour before bed. 3 hours sleep, then up to couch, awake a long while, 2 more hours sleep, back to bed maybe another horrible hour and a half before giving up and getting up. I've experimented with tylenol pm, melatonin, a glass of wine before bed, rubbing biofreeze everywhere but right on the scar. The pain is not awful, it's more like hardcore insomnia.
On the plus side, scar is entirely healed and I've been able to get back in my hot tub the last few days. It was good overall. Great for general aches and pains but it seems to be neither positive nor negative for the new knee. I know some people mentioned swelling issues,so I kept it down to 10 minutes and 101 temperature. We cleaned and freshly filled it before I got in and chemicals are properly balanced. I been using it for 3 days and feel fine. No swelling, just no great pain relief for knee. Maybe the same, maybe slightly better. My back and non operated knee appreciate it though.