I am not going flat but I have not had my reconstruction yet. I had a UMX on 3/6, I can speak to what I purchased that helped and what I won't use again.

What I bought and I used and will still use

• a pillow set for post surgery that allowed me to sit in varying angles in bed while still staying upright https://www.amazon.com/dp/B0BKPD2CM8?psc=1&ref=ppx_yo2ov_dt_b_product_details

• An over the bed table https://www.amazon.com/dp/B000C4QFTY?psc=1&ref=ppx_yo2ov_dt_b_product_details

• a foam drink holder for holding drink and stuff while I was in bed https://www.amazon.com/dp/B096N474P7?psc=1&ref=ppx_yo2ov_dt_b_product_details

• adult wash wipes, you aren't allowed to shower for a little while, these are life savers https://www.amazon.com/dp/B08627YFGH?psc=1&ref=ppx_yo2ov_dt_b_product_details

• dry shampoo - see above https://www.amazon.com/gp/product/B0858KYNY2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

• long lasting lozenges for dry month - the painkillers give me terrible dry mouth, these helped a lot https://www.amazon.com/dp/B011JD6MNU?psc=1&ref=ppx_yo2ov_dt_b_product_details

What I bought and I only used for recovery and won't use again

• drain bag - for holding the drains while I am trying to half ass shower or sink wash hair https://www.amazon.com/dp/B096PSKRRV?psc=1&ref=ppx_yo2ov_dt_b_product_details

• mastectomy pillow - was good for the ride home and first couple car rides. But didn't need it after a week. I've read both sides on these pillows, lifesavers or useless. I'd rec you get one just in case and if its useless at least you have a new soft pillow. https://www.amazon.com/dp/B09VY28K8S?psc=1&ref=ppx_yo2ov_dt_b_product_details

Edit to add - things I used that I already owned

• tons of zipper front hoodies and button down shirts. I was able to put on pull overs but when managing drains the open front shirts are way better

• 20 bazillion blankets. Recovery made me very cold, IDK if this happens to anyone else but I had to add two extra blankets to my bed.