Hello@wildebjef, I'm sure you must be anxious about the upcoming knee replacement surgery. I had my right knee replaced a year ago in April and upon the recommendation of my Mayo Clinic care team did pre-surgery exercises that they recommended. I believe the pre-surgery exercises along with post surgery exercises made my recovery much easier.

The FAQs of Knee Replacement Surgery with Dr. Ortiguera – Mayo Clinic
— https://www.youtube.com/watch?v=kKLNfnKgjNI&index=16&list=PL3A5R5osulIQxfgSwCDqVuTtOJXnKnDT-

Here are some of the pre-surgery knee exercises that I found and used most of them for about 3 to 4 weeks prior to my surgery:
https://www.allinahealth.org/health-conditions-and-treatments/health-library/patient-education/total-knee-replacement/preparing-for-surgery/before-surgery-knee-exercises
I wasn't able to drive for about 4 weeks. I think it's based on how well your recovery goes and your ability to bend your knee like you need to with normal driving. We have a two level home with our bedroom in the lower level and the kitchen and living area on the main floor level. I mostly stayed downstairs during the first week or so and would limit my trips up the stairs. My wife was a big help to me in that respect so I didn't have to make trips upstairs. If it's more convenient to move you CPAP and medicine downstairs that may be helpful for you.

Do you have someone with you that can help if needed when you are home?

@wildebjef I have had two TKRs and both times was able to go upstairs to the bedroom to sleep. That's probably very individual but it sounds as if you live alone so you may want to stay downstairs, just in case you have a problem.

I had tramadol after the second TKR and also either hydrocodone or oxycodone, I forget which, for a very short time with a very small dose. Many people get great relief from ibuprofen but I unfortunately cannot take that, the only OTC pain reliever I can take is acetaminophen.

If you live alone and don't have friends or neighbors who you are comfortable asking for help with grocery shopping, there is Instacart and Whole Foods delivers. We have used both since March due to the pandemic. We are not going to grocery stores.

Good luck with the surgery. I hope it goes great and that your recovery is swift and easy. My ortho highly recommends using the recumbent bike, walking, and water jogging for rehab. If you can do any of those then that will help a lot. If you don't have an exercise bike perhaps there are places where you can rent one. My doctor told me to do it for 30 minutes, for five consecutive days and then take two consecutive days off for recovery.
JK