Hedgehog enclosure and warmth: wheels, temperature and avoiding hibernation attempts

TUREFF• •0

The most important thing to understand about a pet African pygmy hedgehog is that it needs to be kept warm. Unlike a wild European hedgehog, it is not built to hibernate, and if it gets too cold it may attempt to anyway, which can be fatal. A good set-up keeps the temperature steady and gives plenty of room to roam.

The enclosure

Floor space matters most. Hedgehogs travel a long way at night, so give as large an enclosure as you can. A cramped cage leads to boredom and repetitive behaviours.
Solid floor: no wire or mesh floors, which trap and injure feet.
Good ventilation: glass tanks with a closed lid can trap humidity and ammonia; if you use one, make sure air moves through it.
Escape-proof: hedgehogs are surprisingly good climbers and diggers. Check for gaps and secure any lid.
Smooth sides and level areas: avoid multiple levels and steep ramps they could fall from, as their eyesight is poor.

Bedding

Paper-based bedding or washable fabric liners are popular choices. Avoid cedar and pine shavings, which are widely considered irritating to the airways and skin, and avoid dusty materials. Loose threads on fabric can wrap around toes and legs, so check liners regularly for fraying.

Hides and enrichment

At least one hide or sleeping bag where the hedgehog can feel fully enclosed.
Tunnels, toys to push and forage boxes to explore.
Scatter some of their food so they have to search for it.

The wheel

A wheel is essential, not optional. Hedgehogs naturally cover a lot of ground, and a wheel lets them do that in a home enclosure.

The running surface must be solid, with no rungs, mesh or gaps, which can catch feet and legs.
It must be big enough that the hedgehog's back stays straight while running. A diameter of around 30 centimetres is commonly recommended as a minimum for adults.
Hedgehogs often toilet while they run, so choose a wheel that is easy to remove and wash, and clean it every day.

Temperature

Most care guides recommend keeping the enclosure steady at a warm room temperature, typically somewhere in the mid twenties Celsius, roughly 24 to 27 degrees, though different sources quote slightly different ranges. Ask your exotics vet what they advise. The key points:

Avoid cold: temperatures dropping towards the high teens Celsius risk triggering a hibernation attempt.
Avoid overheating too: very high temperatures can cause heat stress.
Use a thermometer inside the enclosure at hedgehog height, not just the room thermostat, and check it daily.
If you add heating, use a heat source designed for animal enclosures, controlled by a thermostat, and positioned so the hedgehog cannot touch it.
Keep the enclosure away from windows, outside walls, draughts and direct sunlight.
Hedgehogs also respond to light. A regular day and night cycle helps, and very short days in winter can contribute to torpor.

Recognising a hibernation attempt

Pet hedgehogs do not have the body reserves to hibernate safely, and an attempt can end in organ failure. Watch for:

A hedgehog that is unusually lethargic or hard to wake
A cold belly to the touch
Wobbliness or unsteady movement
Curling into a ball and not responding as usual
Not eating

If you suspect a hibernation attempt, warm the hedgehog gradually, for example by holding it against your body, warm the room, and call an exotics vet straight away, even if it seems to recover. Do not put it directly on a very hot surface. Then find out why the enclosure got cold, whether a failed heater, a cold night or a thermostat in the wrong place, and fix it.

Cleaning

Spot clean daily, clean the wheel every day, and do a full clean weekly. Use mild, pet-safe cleaners and rinse well. How do you keep your hedgehog warm through the winter? Share your set-up or your questions in the comments.