Hamster will feel too cold for common pet hamsters such as Syrian hamsters and dwarf Campbell hamsters. If proper heating measures are not in place — for example, if the cage is placed directly on cold tile flooring — it can result in irreversible harm to the hamster. You can look for these 5 key signs to determine whether your hamster is too cold.
5 Signs Your Hamster Is Too Cold
Curled up tightly in a ball
If your hamster stuffs its nest full of bedding and stays curled up inside for long periods, it may be trying to conserve body heat. This sign can be subtle, as most hamsters naturally like to burrow and sleep in nests.
Shivering
Just like humans, hamsters shiver when they’re cold to generate body heat. This is usually noticeable when you touch them.
Sneezing
You may hear faint squeaking or chirping-like sneezing sounds. This symptom is easier to detect than the previous two.
Torpor-like state with low activity and appetite
When too cold, hamsters may enter a state similar to torpor — a semi-hibernation where their heartbeat and breathing slow down, and they appear limp, weak, and uninterested in food or movement. Even treats they normally rush to grab may no longer excite them. Note: hamsters won’t exercise to warm themselves up.
Disoriented or unbalanced movement
If the cold causes physical damage, hamsters may appear confused or uncoordinated — walking in circles, stumbling, or falling over. These symptoms can indicate serious and irreversible harm due to the cold. Always keep their environment warm and stable — hamsters live short lives, and every day should be comfortable.
Read More: Signs Your Hamster Is Too Cold or Too Hot – 8 Ways to Keep Them Comfortable
6 Effective Ways to Keep Your Hamster Warm
Heating pad or warming lamp
There are heating pads and lamps made specifically for hamsters. Some models include timers and temperature control. Make sure they function correctly before leaving them unattended — for example, when heading to work — to avoid overheating or fire risks.
Add blankets or towels
Cover the cage with a blanket while ensuring proper ventilation. Placing a blanket under the cage helps prevent cold from transferring through the floor. Some hamster owners have reported neurological damage from cold exposure caused by cages placed directly on chilly surfaces.
More bedding
Add extra bedding or tissue paper (choose thicker fibers to prevent inhalation risks). These materials help with both nesting and insulation.
Hand warmer under the cage
You can place a hand warmer under the cage, but be sure to wrap it in a towel to avoid direct contact with the cage floor.
High-calorie foods
In winter, hamsters need extra energy to stay warm. You can provide calorie-rich treats like almond powder, boiled egg white, honey, oats, flaxseeds, nuts, and peanuts in moderation.
Read More: Safe and Unsafe Foods for Hamsters
6. Cage placement & warm room temperature
Place the cage in a warm, draft-free spot, such as a corner of a room. If there’s sunlight, you can let them enjoy a little sunshine (without overheating, of course).
❌ What NOT to Do
Poor cage materials or placement
Metal wire cages get colder faster. Don’t place the cage directly on the floor, by windows, doorways, or anywhere that gets hit by cold drafts.
Using highly absorbent bedding without changing it regularly
Moist bedding loses insulating power and can make the cage even colder if not replaced frequently.
Improper heating methods
Avoid using electric blankets or heaters to warm the cage directly — this can cause overheating or pose a fire hazard. Also avoid sealing the cage too tightly, which reduces airflow and leads to poor ventilation.
Insufficient food and water
In cold weather, hamsters need more calories to maintain body heat. Ensure they have a steady supply of food and fresh water, and you can supplement with calorie-dense treats like nuts.
Bonus Tip
Place a thermometer near the cage to monitor the temperature and ensure it doesn’t get too cold. Even in winter, don’t forget to maintain proper ventilation inside the cage!
