Hello overthemoongran
During a recent stay in hospital I took
Phone
Kindle
Ipad
Chargers for all 3
Any usual precription medication
Pen
Specs/case
Wet wipes
Lipsyl
Underwear
Loose change
In the room I was in,there where key safes by the bed for your valuables and usual medication,a nurse had the code and would un lock.
Depending in your procedure you are encouraged to wear day clothes,before that you will be in a hospital gown until you are encouraged to get out of bed for a shower,and slippers that are not flip flops,I took joggers and sweat shirts.
Food was plentiful,but any snacks take in with you,you may not have much of an appetite.
Water is provided by the jug full on your bedside you are encouraged to drink as much as you can,in some cases they may monitor your in put.
Good luck with your surgery,and a confortable recovery