I have a nursing bra but only wore it once. I really haven't worn bras for the past 15 years, and I don't leak so there hasn't been a need. I'm small busted. I suppose I could try the nursing bra for pumping while nursing.
for side lying, even with pillows my back is usually giving me fits before morning. I've tried both head on arm and not. Putting baby on pillow to reach top breast instead seems to work but I'm afraid about falling to sleep that way and having him roll off.