I would say take the drugs. Helps get you up and about much sooner and the sooner you get up and moving, as much as it hurts, the better you will feel. Hard to do that without pain relief! I just took what they had although I cut back on one morpheine one that made me feel ill. I also let the nurses take James for a few hours each night so I could sleep, it is hard to get good sleep during the day and as much as I wanted him to be with me, I needed rest far more - and knew that once I got home resting would be even tougher.
I found very loose fitting pjs were fine,and once at home I lived in Bonds trackies tat are loose. If you are a nightie wearer get one that buttons down the front - I have one from Sussan that was good but mainly wore pjs. I would just pull the top down or off my shoulder when feeding.
Support briefs are great once you get home to support the wound and will help your tummy get back to normal much quicker as well. Im still wearing them! Also a pad stuck on your undies over your wound can help support it plus absorb any sweat if it's hot.
General hospital stuff especially if you are sharing a room, ear plugs, eye mask to help you sleep while people are watching tv etc! Nice body wash - I spent ages for my first shower just sitting and washing all the "surgery" feel off me! You will be flat in bed for at least 24 hours afterwards so it's nice to get out and smell delicious! That's all I can think of for now!