@glitterbag,
They are, it's actually raining now which is good. Hedgehogs eat a load of slugs and snails which only come out when it's damp, so hopefully there'll be more to sustain them.
We've been looking up behaviour, and although they're not tame and strokable they are relaxed. They've taken to banging on the bowl when they want more water and lifting up their noses to sniff us, thus exposing the soft underbelly. Not once have either of them curled into a ball which is what they do when scared/threatened.
Unfortunately they don't usually come out until it's dark which makes taking photos difficult. The pictures of Norman are a rare example of an early evening foray.