Not fully healed but figure I'll add some of the things that helped in the hospital. 

- Ask for extra pillows. I used a pair under my thighs to elevate my buttocks off the bed. Kind of floated my rectum a little when I raised my head or foot.

- Frog legs. Laying with my legs up as close to my butt as I could with knees splayed open. Seriously comfortable.

- If you sleep on your side ask for two pillows for behind to prop you up. One pillow for between your legs and one to hug.

- Consider a hemmrhoid cushion, it will take a bit before even one of those is comfy. The cutout allows the poor former rectal area to not have any pressure on it.

Great tips, Felicity! 

After I had my surgery, I picked up a gel cushion for the car - really good investment!