I was sleeping completely upright for a week because I couldn’t take the pain of when I was a bit lower having to get up from bed, I would get a burning sensation pain. When sitting and sleeping upright it really helped and I had no pain at all.
Now I am just over one week post op, I have no pain when getting up even when I am laying/sitting slightly lower. So it will get better within time, but just try to prevent yourself from being in pain and change how you’re sleeping/sitting for the time being by being a bit higher x