Luxury Full Body Bath Pillow for Bathtub, Bath Pillows for Tub with Mesh Laundry Bag & Non-Slip Suction Cups, Cushion for Bathtub Headrest Neck Back Support - 5D Air Mesh & Quick Drying | Pink

This is the one I have and for my severe pain, it cushions the tub well along the entire tub length. It’s not available anymore (not sure why it got a 3.9 since I really love it) but there are many like it.I either suction cup it to the shower wall, hang it on the shower spout, or the curtain rod after squeezing as much water out as possible and it’s good as new.