Hi Chris
I think Stef advised cleaning out the hog box to SueSB because it had not been cleaned out since the year before. She also said ‘… if there is a hedgehog in it then you need to leave it alone. ..’.
It is now a few weeks later and even more hedgehogs would have begun their hibernation. My feeling is that now may be a bit too late and that it would not be advisable to interfere with the box unless you are absolutely certain that there is no hog in it. If you are not sure, I would leave it until the Spring. Maybe leave some nesting material nearby so that if it wants to, the hog could do it’s own ‘housework’. They do, apparently, sometimes change nests during hibernation time.
You might be interested to read:
https://www.hedgehogstreet.org/help-hedgehogs/cleaning-out-boxes/
Although please bear in mind that ‘2) Is anyone home’ (how to find out) doesn’t really work at this time of year when the hogs may be hibernating and not come out of the box daily.