Probably overthinking this, but hey ho, FTM. 
I've read several threads where people giggle at others going into hospital with big suitcases, that they just took a small bag with the essentials and you don't need that much. But now that I'm gathering those essentials (according to Mumsnet, NHS website etc.) I just can't see how it would all fit in one bag, not even a suitcase. 
Two packs of maternity pads and a pack of nappies already fill up most of my hand-luggage sized wheely suitcase! I'm probably going to have a c-section so will need quite a few nappies, pads and baby clothes I imagine if I have to stay multiple nights. Plus all the other stuff on the lists like snacks, nighties, a book, flip flops, a towel, cotton wool, a few toiletries, mint tea... let alone big items like a dressing gown or a pillow.
Are people just saying they brought one bag but forgetting about all the loose items they took separately in carrier bags or something? Or do they just bring like 3 nappies and hope they're home really soon? What did you pack everything in? I live an hour away from the hospital so can't really send DH home for more stuff...