If you’re in the south then I would consider releasing into your hog box at this stage and making sure you supplementary feed. This follows BHPS guidelines and you must remember this is a wild animal
However, I do understand your thoughts about overwintering as it’s now November already. If you keep him in the shed it is possible he won’t hibernate at all – this is fine, but would mean you cleaning out and feeding throughout the winter.
If he decides to hibernate you will see a change in behaviour – eating some days and not getting up on others – there may also be odd coloured poo.
You would need to release at the first signs of hedgehogs coming out of hibernation in the spring
