When do hedgehogs hibernate?
Usually from October or November through to March or April. Hedgehog Street gives that range, and warns that disturbing a hibernating hedgehog is dangerous because it makes the animal spend energy reserves it needs to get through the winter.
What happens during hibernation
Hedgehog Street describes hedgehogs lowering their body temperature to match their surroundings and entering torpor. They live off fat built up over the summer. It also says hedgehogs often move nest at least once during the winter, so seeing one out in winter is not automatically a sign of trouble.
How to help before and during winter
- Food before hibernation. Hedgehog Street says eating enough before hibernation is vital, and that this is when extra feeding can be important. See what can I feed hedgehogs?
- Leave nests alone. Do not disturb a hibernating hedgehog.
- Check bonfire piles. Piles of wood and brush attract hedgehogs looking for somewhere to nest or hibernate. See how do I keep hedgehogs safe from a bonfire?
- If one looks unwell, Hedgehog Street gives 01584 890801 for welfare, injury or illness advice. See I’ve seen a hedgehog out in the day.
Sources
- Hedgehog Street: Hibernation, opened 14 November 2026.
- Hedgehog Street: Garden hazards, opened 14 November 2026.