So glad to hear your husband is doing better. Being caregiver to both a husband and a dog is lots of work, even when you can minimize it. Your knee will just need some time to settle down again. I hope it gets used to side-sleeping soon. You'll be so much happier!
Do you have an ottoman? Or something you can use as one? A large ice chest, perhaps, or upended laundry basket with a nice pillow on top? At about your stage of recovery, I began to shift from my recliner to my sofa, using an ottoman to elevate my legs. Not toes over nose, but I didn't need that so much any more. Comfy and good for icing, though. A sofa or chair could become your new nest if you have a way to raise your legs.