Hey hun I had am overnight stay. Just bring some loose clothes to change into the next day, toothbrush /paste /face wash/wet wipes.
Some people stress a pillow for journey home but I was fine had a lot of layers (considering I had an uplift and Implants under the muscle so a longer surgery)
They provide slippers and comfy dressing gown I brought some slipper socks as I get cold quickly and some magazines
They have wifi so u can go on ur phone or tablet.
Hope tht helps fx
Some mints or a drink for after surgery to help with ur throat. I brought some little fruit pots and 2 complan shakes to drink with milk as a meal supplement. I was super hungry so had tht after the op and before my breakie the following morning.