Oh and bibs if you're bottle feeding!
In UK you need to supply all of your own stuff :(
Other then some clothes , socks, and a bennie the hospital will provide everything else.
I went ahead and packed diapers and wipes though because we live over an hour away from the hospital.
Nappies, wipes, bum cream, scratch mitts, hat, baby grows (x3), sleepsuits (x3), going home outfit, muslin squares, dummies (if you're using them), snow suit, baby shampoo (if you're bathing in hosp), baby powder.. That's all I can think of For now :)