You have to be upright with pillows behind you. As upright as you can to help with the swelling. I slept in an armchair with my feet on the big poof for over 7 nights. My choice. But I tried the bed and couldnt get comftable and my partner kept banging me to felt safer in the chair. You just have to try whats best for you. But you just cant lay flat. Hope this helps.x