Glad to hear your pain is easing and hope the ROM will follow. Keep doing what makes you happy while your body heals.
I also still get zingers but less frequently. I have a steady low level pain right at the joint on the medial side. The tightness around the front of the knee when I bend is getting better over time.
I sleep with a cervical pillow under my head and a pillow between my knees, though between the knees may be an off description. I stagger the knees around the pillow so that the knees don't touch - still too much pain. With those 2 pillows, I can shift from one side to the other and have just started sleeping through the night (with a little help from a 1:1 medical THC/CBD tincture now that I'm off the hard drugs). I haven't been a back sleeper since I was pregnant 40 years ago.