Yes, hedgehogs do need a heat source in winter, especially if they are kept indoors or in a climate that gets very cold. Hedgehogs are sensitive to temperature changes and can become lethargic or even hibernate if it gets too cold. Here are some tips for providing adequate warmth:

1. **Temperature Range**: Ideally, the temperature for hedgehogs should be maintained between 72°F to 80°F (22°C to 27°C). If the temperature drops below 65°F (18°C), it's essential to provide additional heat.

2. **Heat Mats**: Use a heat mat designed for reptiles, placed under one side of their enclosure. This allows them to choose to move closer to the heat when they feel cold. Make sure the mat is not too hot to avoid burns.

3. **Heating Lamps**: A ceramic heat emitter can also be used, but ensure it is positioned safely to avoid direct contact with the hedgehog or bedding.

4. **Insulation**: If your hedgehog is in an outdoor hutch, ensure it is well insulated. You can use straw or hay for bedding, as these materials provide good insulation.

5. **Monitoring**: Consider using a thermometer to monitor the temperature in their habitat. This way, you can adjust the heating source as needed to maintain a comfortable environment.

By ensuring your hedgehog has a warm and cozy space during the winter months, you can help keep them healthy and happy!

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Topics covered in this question:

Hedgehog Care Pet Hedgehogs Temperature Winter Care Heat Source