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We have a tendency to lump heat and light together. They are both equally important for the same reasons, we don't like hedgehogs trying to hibernate.
Our hedgehogs are not meant to hibernate, it is deadly for them.

If a hedgehog bounces back from attempting to hibernate, it faces medical issues. It's immune system has been stressed. You are more likely to be dealing with an URI. They are more likely to attempt hibernation again.

When a person asks a question that may be hibernation related, we always ask about temperature and lighting. Often in the same sentence. They are two totally different issues leading to the same problem. Both are equally important in preventing hibernation. Much the same way as food and water are necessary for good nutrition. Without one the other isn't nearly as beneficial.

Heating and lighting need to come from two different sources. If your heat source emits light, you either are lighting the cage 24 hours a day, or not heating the cage 24 hours a day. Light is important, but so is the absence of light. Cages need to be kept at a constant temperature. I'm sure you can see where bulbs that emit light can be an issue.
Reptile bulbs that are for nighttime, don't produce light... Wait, you can see the lighting element right, that little squiggly thing in the bulb. Do you know why you see it when it's on but not when it's off? Because it's producing light, but the coloring of the bulb defuses the lighting. But it's not totally blocked out by the bulb. If it were, you wouldn't see the element inside.

The heat needs to be the same through the whole cage. They aren't reptiles, they don't need a cooler and warmer side to their cage. They won't feel the need to leave the warm side. Right now, it's 12 degrees outside my house and inside is 70 degrees. Do you know where I don't want to be? Yes, I have no desire to go outside.
But, they will get hungry and go to their food... Not always. Maybe if they get really hungry, but then they could easily be weak from not eating or drinking. Then going into the cooler area might trigger a hibernation attempt because their body is already under stress from not eating.

Heat needs to be the same temperature 24 hours a day. Where they are naturally from temperatures don't change a lot.
Think about in the fall, that first cold day. Let's say the day before it was 70 degrees, pretty comfortable. Today it's 55 degrees in the morning, it's not comfortable. The 55 degrees isn't what makes it uncomfortable in itself, it's the 15 degree drop in temperature that makes it uncomfortable. It works the same way for a hedgehog but on a more drastic scale. A shift of more than a couple degrees puts them into that same shock that the 15 degree shift will on you. Except because they are from an area where there is very little temperature change, they aren't equipt to warm their body like we are, shivering.

Lighting, while natural sunlight is wonderful, it won't work as your main source of light. For one days get shorter in the winter and longer in the summer. The sun rises in the east and sets in the west. Yes light will come in through a west facing window in the morning after the sun has risen. Takes a bit of time, but it does. It's no way near bright. Many houses don't have windows facing east and west in the same room. Also most people have obstructions to the sunlight, other houses, buildings, trees, and the natural lay of the land.
Because of all that you need to supplement the lighting for your hedgehog.
But they are nocturnal... And the sun still rises and sets where they are from. The sun going up and down sends signals to every animals brain telling it to wake up or go to sleep.

So what do you need to accomplish all this?
A proper heat set up. There is only two options for this. A space heater or a CHE setup. Yes you can try to heat your house to a nice 73-78 degrees, that gets warm and expensive, and if you have to increase the heat in the cage, the whole house gets increased.
http://www.hedgehogcentral.com/foru...-you-need-heating-system-your-house-wimp.html because of this, you may need more heating than you think. You may need a combination of heating systems.
But it's warm where I live... Ok, so have a heat system in place for a cold snap or inconsistent temperatures. If your heat never kicks on then your fine, but if it needs to kick on and can't because it's nonexistent, you have a problem.
 

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Well said. I think a lot of people fail to understand how our recommended heating set-up works. If it's too warm, it will never turn on. You don't have to worry about losing precious dollars in electricity. There's literally no downside to having a heating system in place beyond the initial cost, which should be budgeted into owning a hedgehog anyways.
 
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