Gert from my personal experience, you need to make sure that you are heard. When I was there on Wednesday, although they knew I am diabetic, nobody spoke to me about lunch so I approached a MW and explained that I needed to take my insulin 15 minutes before I eat, so could she let me know if I needed to find my own food or not. She told me it would arrive at 12 noon. Of course, it didn't, so I waited a bit and went to forage for food.
Same thing when I was on the post-natal ward last time. No breakfast appeared and no one told me what to do. Turns out, there was a breakfast room so that we could make cereal, toast etc. But I had to ask to find out about it. So don't assume that people will ask you if you want anything.
It definitely helps to be a little bit assertive. One MW told me categorically that I didn't need any painkillers (post c-section, first day) and marched off. So I called her back and asked her if she knew I'd had a c-section. Turns out she didn't.
I also think it helps to be able to remember that there are emergencies going on and you aren't the only person there. There was a woman kicking off in the next bed to me on Wednesday because she hadn't seen the doctor yet. She clearly wasn't an emergency, and the 2 doctors were busy performing emergency c-sections, and even that didn't mollify her.
You also need to prepare your DH/partner to be sent off every evening with a list of stuff to wash/remember/prepare/bring back every day.
I found anti-bac wipes helpful, as the loos weren't the cleanest. I got a bit paranoid about it, to be honest!
I hated every day I was there, because it was hot, uncomfortable but really in hindsight, as others have mentioned, I just wanted to be home with my baby. It'll be fine, honestly.