Same as Jess. One arm is free and the other arm rests on a pillow so doesn’t take any of the weight.
She takes bottles as well so I’ve always been contemplating giving up BF but it’s just so much more convenient in the night 🤣 but when she wants to feed for over 20m I start losing feeling in my arm 😩🤣
Have you tried the “upside down” laying position?
I pop a nursing pillow under to act as my arms so I have both hands free when she’s feeding x