You can sleep using two pillows behind your back , not being lie down but a little bit close to sitting. That's the way i sleep after surgery and it's helpful.
Close to this way
https://www.relaxtheback.com/media/catalog/product/cache/1/small_image/600x600/9df78eab33525d08d6e5fb8d27136e95/a/g/ag-fxi_purefit_wedge_female_env_600.jpg
Sent from my SM-N920C using the BariatricPal App