@DMcM
I'm not sure what machine the hospital supplied you with but mine was Aircast Cryo. I had frozen loads of ice cube bags before going in to hospital as we don't have an ice machine on our fridge but after a few days, I realised the squat cottage cheese cartons were perfect for the Aircast and so easy to keep filling up for the freezer.
I too was scared stiff [hence my name] but found the horrendous stories I'd heard and read didn't apply to me. The meds kept the pain under control and all I have had is discomfort. I did all my exercises apart from anything which involved heel lift/quad strengthening. That hurt too much. Interestingly, five months on, I am lifting 10kgs on the leg extension machine in the gym [I was an habitual gym user before and was used to all the machines] so the two month wait for anything involving the quads didn't do any harm whatsoever.
My new joint is a success but I do have a hamstring problem which my physio and I are working on and which could take a few more months yet to resolve, but then I had a problem with it before the op so I ignore it apart from getting into the car [have to put the seat right back] and getting up from a low chair.
I have a manual car, had a LTKR and was driving at four weeks which will give you an indication of my recovery.
Hope yours goes as well.
ps
Nocturnal dipping into this forum in very common too. I habitually chatted with others with sleep disruption, at 3am ish. It goes, eventually.