I just brought a regular pillow for the car ride home and was fine. I was out of the bra they put on me in the hospital after 3 days after my shower and I got front zip sports bras off Amazon. Women's Zip Front Sports Bra... https://www.amazon.com/dp/B06XC7CY44?ref=ppx_pop_mob_ap_share they’re great and really inexpensive! I would get some small ice packs you can put on your boobs for the swelling. The button-up pjs from Target are good too. I would also get out any button-up flannel shirt you have in your closest or go buy some so you have something to wear when you go out if you need to.

Someone on the sub recommended these: https://www.amazon.com/gp/product/B06XC7CY44/

They're not super compressive, but they are really comfy and good enough if you size down. I ended up wearing them for like two years because I had wonky boobs and needed a revision and now just kinda wear them for low-impact activities.