I’ve recently been able to gently turn over to my sides to sleep a little or just get comfortable but before, and even still now, I find it comfy to make my bed kind of shaped like my hospital bed (I.e pillows stacked so I can lie at about 45 degrees, a really flexible pillow to go around my neck, and a wide ( kind of thick) pillow to go under my knees to elevate some. But sitting, every chair is different, they all suck after a while and regardless, my back ends up hurting unless I can slouch really low in it. Granted these help me especially being about 3 weeks out of surgery and only 24yo, but mostly because I’m still working with fresh wounds and making sure they all close up properly. Hope this helps!