In the uk they don't provide anything except towels and bedding for you and baby, in general. My hospital also provides formula if not breast feeding.
You need clothes for you and baby for after they,re here. I echo maternity pads and knickers, lots of both.
For labour: snacks, lucozade, water and food for dad. A lot of hospital cafés aren't open on weekends. Hair bands, flannel, water spray bottle, lip balm. I bought a garden kneeler too because I have poor knees and the floors are hard. If your hospital allow it a comfy nighty of your own.
Other stuff: camera, mobile phone and charger, a pen, I also bought a puzzle book as I was induced, iPod or equivalent.