Thanks for updating us and I'm so glad you are slowly feeling better.
For about the first week, I had to sleep on my back and I am a side sleeper. It was such a struggle!!!! I hated it and definitely woke up several times a night. Whenever I wanted to try to side sleep, the weight of my belly pulling down where the stitches were was not fun.
However around my second week or so, I was able to sleep on my sides with just gentle maneuvering. I also used a C pillow which helped with support. And before I knew it, I was able to sleep as I had before. It might take a little longer for the stomach sleeping more so because the inside stitches will take longer to heal and it might not feel comfortable, but side sleeping should be closer around the bend.