Pets at Risk of Hibernation-Like Torpor During Tennessee Cold Snap

Power outages could cause indoor temperatures to plummet, putting small furry pets like hamsters and guinea pigs into a dormant state.

Jan. 27, 2026 at 6:55pm

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The sub-freezing temperatures blasting Tennessee and much of the central and eastern U.S. could force some pets into a hibernation-like sleep called torpor if the power goes out. Torpor is a state of reduced metabolism and body temperature that allows small animals to conserve energy and survive cold conditions. While unlikely to occur in pets with normal indoor temperatures, if the indoor temperature drops low enough, pets' respiratory rates can slow dramatically, potentially lasting for days.

Why it matters

Power outages caused by the recent winter storm have left tens of thousands of Tennessee homes without heat, raising concerns that some pets could enter this hibernation-like state if indoor temperatures plummet. Prolonged exposure to cold can also lead to hypothermia in these small animals.

The details

According to veterinary experts, torpor is essentially a 'short hibernation' that allows small, furry animals like hamsters and guinea pigs to survive cold conditions. If the indoor temperature dips below 60 degrees Fahrenheit, these pets' respiratory rates can decrease to as slow as one breath every few minutes. Torpor can last for a few days, but if temperatures stay too low for an extended period, the animals could also develop hypothermia.

  • The winter storm led to tens of thousands of power outages across Tennessee.
  • Another blast of cold air is forecast to move into the state on Saturday with lows again in the single digits.

The players

Apex Vets

A Scottish veterinary practice that provided information on the hibernation-like state of torpor in small pets.

Kavee

A company providing guinea pig products in the United Kingdom that offered tips on keeping guinea pigs warm during cold weather.

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What they’re saying

“When we fall asleep at night, our heart rate and breathing slow down - and that's exactly what happens when an animal goes into torpor.”

— Kavee, Guinea Pig Product Company

“Though torpor is a stronger sleep than normal, the animal isn't as far gone as they are during hibernation. ... it helps your furry friends stay warm without losing too much energy.”

— Kavee, Guinea Pig Product Company

What’s next

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The takeaway

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